Microsoft 365 Copilot vs. Slack AI: data protection per plan

Microsoft 365 Copilot (7 plans) and Slack AI (4 plans) side by side: DPA, training on inputs, hosting and data retention per plan, based on the providers’ public documents. Without rating.

Last updated: 18 Oct 2026 (latest review date of the tools shown)

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At a glance

Each value is listed with the plans it applies to. Pick a tier to see only plans of that tier; if plans are chosen in the plan comparison below, the table shows exactly those.

Plan tier

All plans: each value is listed with the plans it applies to.

Overview: each value with the plans it applies to
Feature	Microsoft 365 Copilot	Slack AI
Provider based in	According to the Microsoft Privacy Statement	San Francisco, CA, USA
Plans recorded	7	4
Hosting	mixed: Microsoft Copilot, Copilot in Microsoft 365 Personal / Family, Microsoft 365 PremiumEU option: Microsoft 365 Copilot Business, Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium, Microsoft 365 Copilot	US only: Free, Promixed: Business+, Enterprise+
Training on inputs	opt-out available: Microsoft Copilotno: Copilot in Microsoft 365 Personal / Family, Microsoft 365 Premium, Microsoft 365 Copilot Business	no: all 4 plans
DPA	not documented: Microsoft Copilot, Copilot in Microsoft 365 Personal / Family, Microsoft 365 Premiumyes: Microsoft 365 Copilot Business, Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium, Microsoft 365 Copilot	yes: all 4 plans
As of	18 Oct 2026	18 Oct 2026

Plans compared

Plan vs. planAll plans

Microsoft 365 Copilot planSlack AI plan

Plans of the same tier are preselected: the tier chosen in the tier switch, otherwise the tier of the plan you pick yourself. Plans you pick yourself stay. The address holds your selection and can be shared.

Comparison of Microsoft 365 Copilot Microsoft 365 Copilot Business vs. Slack AI Pro, one plan each, without rating
Feature	Microsoft 365 CopilotMicrosoft 365 Copilot Business (Add-on)Tier: Team/Business · Microsoft · As of 18 Oct 2026	Slack AIProTier: Team/Business · Slack Technologies, LLC · As of 18 Oct 2026

	yes	yes
Details: DPA available	yes (according to q2, the DPA and Product Terms apply to Copilot use by organisations with Enterprise Data Protection; the comparison table on the Business pricing page lists the row "Enterprise Data Protection (EDP), management, compliance, and controls" for Copilot Business, q12) Provider’s DPA	yes (the Slack DPA page links, as "Data Processing Addendum Form", to the Salesforce Data Processing Addendum, Revision August 2026, pre-signed among others for Slack Technologies, LLC and Slack Technologies Limited; the customer signs it and sends it to Salesforce by email) Provider’s DPA

	no	no
Details: Training on inputs	"Prompts, responses, and data accessed through Microsoft Graph aren't used to train foundation LLMs, including those used by Microsoft Copilot." (q1) The retrieved documentation does not distinguish between Business and Enterprise; the Business pricing page names "Enterprise Data Protection (EDP)" for Copilot Business (q12).	Documentation does not differentiate by plan: "Customer data is never used to train third-party LLMs." and "Your Customer Data (like messages and files) is never used to train any LLMs."

differs by plan	EU option	US only
Details: Data residency	Same arrangement as Microsoft 365 Copilot (Premium licence); a plan-specific deviation is not documented in the retrieved pages. According to q1/q6: calls to the LLM go to the nearest data centres in the region but may go to other regions at times of high utilisation; additional safeguards apply to EU users, "EU traffic stays within the EU Data Boundary". Exceptions according to the sources: (a) web search queries are excluded from the EU Data Boundary and the DPA (q2, q10); (b) Anthropic models are excluded from the EU Data Boundary (q2, q3); (c) Flex Routing: customers in the EU/EFTA can allow LLM inference outside the EU Data Boundary at peak load (USA, Canada or Australia); data at rest remains in the EUDB except for limited pseudonymised data; on by default for eligible tenants created after 2026-03-25, review of the setting recommended for older tenants (q4); (d) Copilot in Word/Excel/PowerPoint with Anthropic models: processing outside the EUDB (q5). Customers with Multi-Geo are not within the EUDB scope for Microsoft 365 (q4).	No choice of data region in Free/Pro: „If you’re using the free version of Slack or the Pro plan, you’ll need to upgrade to the Business+ plan first.“ According to Slack, data residency is only available in Business+ and Enterprise; without it, data is located in the USA („Existing user data will continue to reside in the United States“).

	list available	list available
Details: List published	Anthropic (sub-processor according to q3; Anthropic models in, among others, Microsoft Copilot, Researcher, Copilot Studio, Power Platform and Copilot in Microsoft 365 apps; deactivated by default for customers in the EU/EFTA/UK and excluded from the EU Data Boundary; excepted are "Anthropic models with Data Retention": the Product Terms and DPA do not apply to them, and Anthropic acts there as an independent processor, q3) OpenAI (added to the sub-processor list 2026-06-23, usable from 2026-07-09, activated by default for eligible commercial customers from 2026-07-24; included in the EU Data Boundary but excluded from in-country processing commitments; q8) SpaceXAI (list updated 2026-09-10, available to eligible customers from 2026-09-18; Frontier programme only, does not apply to customers in the EU/EFTA/UK; q9) Full list and number: not publicly documented on the retrieved pages (reference to the Service Trust Portal, sign-in required) Provider’s list	Amazon Web Services, Inc. (hosting incl. Slack AI, selectable data region incl. Germany, France, Sweden, Switzerland, UK; Amazon Chime for huddles; Amazon Transcribe for huddle/clip transcripts; CloudFront CDN) Microsoft Corporation (Microsoft Azure; "Provider of generative artificial intelligence services", location USA) SuSea, Inc. (dba You.com; web search for Slackbot, only if enabled by the customer; USA) Google LLC (hosting of email notifications; in the PDF layout a further line "Provider of generative artificial intelligence services" appears next to it, attribution unclear) Zendesk, Inc. (support tools; USA) Provider’s list

differs by plan	Prompts and responses are stored in…	Summaries and search answers ephemeral
Details: Data retention	Prompts and responses are stored in Exchange (tenant) for audit/eDiscovery; retention configurable via Microsoft Purview; users can delete their Copilot history via the My Account portal (q1, q16). Fixed default period: not publicly documented on the retrieved pages. For "Anthropic models with Data Retention" (to be activated separately, Anthropic terms): Anthropic stores inputs/outputs for up to 30 days, in the case of suspected violations up to 2 years, classification scores up to 7 years (q3). DPA (version of 2026-05-22, q18): after expiry or termination of the subscription, customer data remains available for export in a limited-function account for 90 days and is then deleted within a further 90 days. Microsoft Purview (q26): the documentation describes periods only for configured retention policies (after expiry, items are moved to the SubstrateHolds folder, where they stay for at least 1 day; the timer job typically runs every 1–7 days).	Summaries and search answers ephemeral (not stored); recaps stored for 90 days; LLMs "do not retain information once the request has been processed"; AI content saved in conversations/canvases follows the organisation's retention settings.

differs by plan	several tiers	8.25 EUR/user/mo… (further prices in the details)
Details: Price	Add-on: USD 18 per user/month with annual payment (promotional price, "Originally starting from $21.00 now starting from $18.00"), USD 25.20 monthly; qualifying plan required. Bundled: Business Standard with Copilot USD 23.50 (annual) / USD 28.20 (monthly); Business Premium with Copilot USD 32.00 / USD 38.40 (q12). Germany (q29, as of 2026-10-18, "prices plus VAT" (translated)): add-on Microsoft 365 Copilot Business EUR 15.60 per user/month with annual billing ("Originally starting from 18,20 € now starting from 15,60 €"), EUR 21.84 with a monthly subscription; bundles with Business Standard or Business Premium EUR 20.36 or EUR 27.73 (annual) and EUR 24.43 or EUR 33.28 (monthly). The page offers the filters "plans with Teams" and "plans without Teams" (translated labels); which filter the bundle prices in the page text belong to cannot be determined from the retrieved text	EUR 8.25 per user/month with monthly payment or EUR 6.75 with annual payment (as of 2026-10-14, pricing page additionally names a 50 % discount for 3 months)
	yes	yes
Details: AI features included	yes (Copilot add-on for qualifying Business plans)	yes (limited: summaries, huddle notes, automatic search filters; Slackbot only as a limited preview/trial)

	13 sources	10 sources
Details: Sources with retrieval date	Data, Privacy, and Security for Microsoft Copilot (Microsoft Learn)Docs, retrieved 18 Oct 2026 Enterprise data protection in Microsoft Copilot and Microsoft Copilot Chat (Microsoft Learn)Docs, retrieved 18 Oct 2026 Anthropic models in Microsoft Online Services (Microsoft Learn, as of 2026-09-18)Docs, retrieved 18 Oct 2026 Flex routing (EU and EFTA) (Microsoft Learn)Docs, retrieved 18 Oct 2026 Copilot in Microsoft 365 apps with Anthropic models (Microsoft Learn)Docs, retrieved 14 Oct 2026 Microsoft Copilot overview (licence tiers, EUDB, EDP; Microsoft Learn)Docs, retrieved 18 Oct 2026 OpenAI as a subprocessor in Microsoft Online Services (Microsoft Learn)Docs, retrieved 14 Oct 2026 SpaceXAI as a subprocessor in Microsoft Online Services (Microsoft Learn)Docs, retrieved 14 Oct 2026 Data, privacy, and security for web search in Microsoft Copilot and Microsoft Copilot Chat (Microsoft Learn)Docs, retrieved 14 Oct 2026 Microsoft Copilot Plans and Pricing (Microsoft)Pricing page, retrieved 18 Oct 2026 Microsoft Products and Services Data Protection Addendum (DPA), version of 2026-05-22 (Word download, evaluated)DPA, retrieved 18 Oct 2026 Learn about retention for Copilot and AI apps (Microsoft Learn, as of 2026-06-25)Documentation, retrieved 18 Oct 2026 Microsoft Copilot pricing for small and medium-sized businesses (Germany)Pricing page, retrieved 18 Oct 2026 All details on the tool page	Security for AI features in SlackDocumentation, retrieved 18 Oct 2026 Guide to AI features in SlackDocumentation, retrieved 18 Oct 2026 Slack PricingPricing page, retrieved 18 Oct 2026 Updates to feature availability and pricing for Slack plansDocumentation, retrieved 14 Oct 2026 Slack Privacy Policy (Effective 2023-07-05)Privacy notice, retrieved 18 Oct 2026 Salesforce Infrastructure and Sub-processors (Published 2026-10-02), section SlackSub-processor list, retrieved 14 Oct 2026 Slack Help Center: Data residency for SlackHelp article, retrieved 18 Oct 2026 Salesforce Data Processing Addendum (Revision August 2026), linked from the Slack DPA pageDPA, retrieved 18 Oct 2026 Slack artificial intelligence, machine learning, and data usageDocumentation, retrieved 18 Oct 2026 Slack AI PrinciplesDocumentation, retrieved 18 Oct 2026 All details on the tool page

Contract / DPA

: Microsoft 365 Copilot Microsoft 365 Copilot Businessyes; Slack AI Proyes; Microsoft 365 Copilot Microsoft 365 Copilot Business
yes (according to q2, the DPA and Product Terms apply to Copilot use by organisations with Enterprise Data Protection; the comparison table on the Business pricing page lists the row "Enterprise Data Protection (EDP), management, compliance, and controls" for Copilot Business, q12)
Provider’s DPA
Slack AI Pro
yes (the Slack DPA page links, as "Data Processing Addendum Form", to the Salesforce Data Processing Addendum, Revision August 2026, pre-signed among others for Slack Technologies, LLC and Slack Technologies Limited; the customer signs it and sends it to Salesforce by email)
Provider’s DPA

Training

: Microsoft 365 Copilot Microsoft 365 Copilot Businessno; Slack AI Prono; Microsoft 365 Copilot Microsoft 365 Copilot Business
"Prompts, responses, and data accessed through Microsoft Graph aren't used to train foundation LLMs, including those used by Microsoft Copilot." (q1) The retrieved documentation does not distinguish between Business and Enterprise; the Business pricing page names "Enterprise Data Protection (EDP)" for Copilot Business (q12).
Slack AI Pro
Documentation does not differentiate by plan: "Customer data is never used to train third-party LLMs." and "Your Customer Data (like messages and files) is never used to train any LLMs."

Hosting

differs by plan: Microsoft 365 Copilot Microsoft 365 Copilot BusinessEU option; Slack AI ProUS only; Microsoft 365 Copilot Microsoft 365 Copilot Business
Same arrangement as Microsoft 365 Copilot (Premium licence); a plan-specific deviation is not documented in the retrieved pages. According to q1/q6: calls to the LLM go to the nearest data centres in the region but may go to other regions at times of high utilisation; additional safeguards apply to EU users, "EU traffic stays within the EU Data Boundary". Exceptions according to the sources: (a) web search queries are excluded from the EU Data Boundary and the DPA (q2, q10); (b) Anthropic models are excluded from the EU Data Boundary (q2, q3); (c) Flex Routing: customers in the EU/EFTA can allow LLM inference outside the EU Data Boundary at peak load (USA, Canada or Australia); data at rest remains in the EUDB except for limited pseudonymised data; on by default for eligible tenants created after 2026-03-25, review of the setting recommended for older tenants (q4); (d) Copilot in Word/Excel/PowerPoint with Anthropic models: processing outside the EUDB (q5). Customers with Multi-Geo are not within the EUDB scope for Microsoft 365 (q4).
Slack AI Pro
No choice of data region in Free/Pro: „If you’re using the free version of Slack or the Pro plan, you’ll need to upgrade to the Business+ plan first.“ According to Slack, data residency is only available in Business+ and Enterprise; without it, data is located in the USA („Existing user data will continue to reside in the United States“).

Sub-processors

: Microsoft 365 Copilot Microsoft 365 Copilot Businesslist available; Slack AI Prolist available; Microsoft 365 Copilot Microsoft 365 Copilot Business
Anthropic (sub-processor according to q3; Anthropic models in, among others, Microsoft Copilot, Researcher, Copilot Studio, Power Platform and Copilot in Microsoft 365 apps; deactivated by default for customers in the EU/EFTA/UK and excluded from the EU Data Boundary; excepted are "Anthropic models with Data Retention": the Product Terms and DPA do not apply to them, and Anthropic acts there as an independent processor, q3)
OpenAI (added to the sub-processor list 2026-06-23, usable from 2026-07-09, activated by default for eligible commercial customers from 2026-07-24; included in the EU Data Boundary but excluded from in-country processing commitments; q8)
SpaceXAI (list updated 2026-09-10, available to eligible customers from 2026-09-18; Frontier programme only, does not apply to customers in the EU/EFTA/UK; q9)
Full list and number: not publicly documented on the retrieved pages (reference to the Service Trust Portal, sign-in required)
Provider’s list
Slack AI Pro
Amazon Web Services, Inc. (hosting incl. Slack AI, selectable data region incl. Germany, France, Sweden, Switzerland, UK; Amazon Chime for huddles; Amazon Transcribe for huddle/clip transcripts; CloudFront CDN)
Microsoft Corporation (Microsoft Azure; "Provider of generative artificial intelligence services", location USA)
SuSea, Inc. (dba You.com; web search for Slackbot, only if enabled by the customer; USA)
Google LLC (hosting of email notifications; in the PDF layout a further line "Provider of generative artificial intelligence services" appears next to it, attribution unclear)
Zendesk, Inc. (support tools; USA)
Provider’s list

Retention

differs by plan: Microsoft 365 Copilot Microsoft 365 Copilot BusinessPrompts and responses are stored in…; Slack AI ProSummaries and search answers ephemeral; Microsoft 365 Copilot Microsoft 365 Copilot BusinessPrompts and responses are stored in Exchange (tenant) for audit/eDiscovery; retention configurable via Microsoft Purview; users can delete their Copilot history via the My Account portal (q1, q16). Fixed default period: not publicly documented on the retrieved pages. For "Anthropic models with Data Retention" (to be activated separately, Anthropic terms): Anthropic stores inputs/outputs for up to 30 days, in the case of suspected violations up to 2 years, classification scores up to 7 years (q3). DPA (version of 2026-05-22, q18): after expiry or termination of the subscription, customer data remains available for export in a limited-function account for 90 days and is then deleted within a further 90 days. Microsoft Purview (q26): the documentation describes periods only for configured retention policies (after expiry, items are moved to the SubstrateHolds folder, where they stay for at least 1 day; the timer job typically runs every 1–7 days).
Slack AI ProSummaries and search answers ephemeral (not stored); recaps stored for 90 days; LLMs "do not retain information once the request has been processed"; AI content saved in conversations/canvases follows the organisation's retention settings.

Price

differs by plan: Microsoft 365 Copilot Microsoft 365 Copilot Businessseveral tiers; Slack AI Pro8.25 EUR/user/mo… (further prices in the details); Microsoft 365 Copilot Microsoft 365 Copilot Business
Add-on: USD 18 per user/month with annual payment (promotional price, "Originally starting from $21.00 now starting from $18.00"), USD 25.20 monthly; qualifying plan required. Bundled: Business Standard with Copilot USD 23.50 (annual) / USD 28.20 (monthly); Business Premium with Copilot USD 32.00 / USD 38.40 (q12). Germany (q29, as of 2026-10-18, "prices plus VAT" (translated)): add-on Microsoft 365 Copilot Business EUR 15.60 per user/month with annual billing ("Originally starting from 18,20 € now starting from 15,60 €"), EUR 21.84 with a monthly subscription; bundles with Business Standard or Business Premium EUR 20.36 or EUR 27.73 (annual) and EUR 24.43 or EUR 33.28 (monthly). The page offers the filters "plans with Teams" and "plans without Teams" (translated labels); which filter the bundle prices in the page text belong to cannot be determined from the retrieved text
Slack AI Pro
EUR 8.25 per user/month with monthly payment or EUR 6.75 with annual payment (as of 2026-10-14, pricing page additionally names a 50 % discount for 3 months)
: Microsoft 365 Copilot Microsoft 365 Copilot Businessyes; Slack AI Proyes; Microsoft 365 Copilot Microsoft 365 Copilot Business
yes (Copilot add-on for qualifying Business plans)
Slack AI Pro
yes (limited: summaries, huddle notes, automatic search filters; Slackbot only as a limited preview/trial)

Evidence

: Microsoft 365 Copilot Microsoft 365 Copilot Business13 sources; Slack AI Pro10 sources; Microsoft 365 Copilot Microsoft 365 Copilot Business
Data, Privacy, and Security for Microsoft Copilot (Microsoft Learn)Docs, retrieved 18 Oct 2026
Enterprise data protection in Microsoft Copilot and Microsoft Copilot Chat (Microsoft Learn)Docs, retrieved 18 Oct 2026
Anthropic models in Microsoft Online Services (Microsoft Learn, as of 2026-09-18)Docs, retrieved 18 Oct 2026
Flex routing (EU and EFTA) (Microsoft Learn)Docs, retrieved 18 Oct 2026
Copilot in Microsoft 365 apps with Anthropic models (Microsoft Learn)Docs, retrieved 14 Oct 2026
Microsoft Copilot overview (licence tiers, EUDB, EDP; Microsoft Learn)Docs, retrieved 18 Oct 2026
OpenAI as a subprocessor in Microsoft Online Services (Microsoft Learn)Docs, retrieved 14 Oct 2026
SpaceXAI as a subprocessor in Microsoft Online Services (Microsoft Learn)Docs, retrieved 14 Oct 2026
Data, privacy, and security for web search in Microsoft Copilot and Microsoft Copilot Chat (Microsoft Learn)Docs, retrieved 14 Oct 2026
Microsoft Copilot Plans and Pricing (Microsoft)Pricing page, retrieved 18 Oct 2026
Microsoft Products and Services Data Protection Addendum (DPA), version of 2026-05-22 (Word download, evaluated)DPA, retrieved 18 Oct 2026
Learn about retention for Copilot and AI apps (Microsoft Learn, as of 2026-06-25)Documentation, retrieved 18 Oct 2026
Microsoft Copilot pricing for small and medium-sized businesses (Germany)Pricing page, retrieved 18 Oct 2026
All details on the tool page
Slack AI Pro
Security for AI features in SlackDocumentation, retrieved 18 Oct 2026
Guide to AI features in SlackDocumentation, retrieved 18 Oct 2026
Slack PricingPricing page, retrieved 18 Oct 2026
Updates to feature availability and pricing for Slack plansDocumentation, retrieved 14 Oct 2026
Slack Privacy Policy (Effective 2023-07-05)Privacy notice, retrieved 18 Oct 2026
Salesforce Infrastructure and Sub-processors (Published 2026-10-02), section SlackSub-processor list, retrieved 14 Oct 2026
Slack Help Center: Data residency for SlackHelp article, retrieved 18 Oct 2026
Salesforce Data Processing Addendum (Revision August 2026), linked from the Slack DPA pageDPA, retrieved 18 Oct 2026
Slack artificial intelligence, machine learning, and data usageDocumentation, retrieved 18 Oct 2026
Slack AI PrinciplesDocumentation, retrieved 18 Oct 2026
All details on the tool page

Comparison of Microsoft 365 Copilot vs. Slack AI by feature, without rating
Feature	Microsoft 365 CopilotMicrosoft · 7 plans · As of 18 Oct 2026	Slack AISlack Technologies, LLC · 4 plans · As of 18 Oct 2026

differs by tool	not publicly documentedMicrosoft Copilot (consumer, free, personal Microsoft account), Copilot in Microsoft 365 Personal / Family (consumer), Microsoft 365 Premium (consumer) yesMicrosoft 365 Copilot Business (Add-on), Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on), Microsoft 365 Copilot (premium licence, organisations, add-on), Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on)	yesall 4 plans
Details: DPA available	Microsoft Copilot (consumer, free, personal Microsoft account) not publicly documented (consumer pages refer to the Microsoft privacy statement; no DPA named, q14/q15) Copilot in Microsoft 365 Personal / Family (consumer) not publicly documented (consumer subscription; no DPA named in q14/q15) Microsoft 365 Premium (consumer) not publicly documented Microsoft 365 Copilot Business (Add-on) yes (according to q2, the DPA and Product Terms apply to Copilot use by organisations with Enterprise Data Protection; the comparison table on the Business pricing page lists the row "Enterprise Data Protection (EDP), management, compliance, and controls" for Copilot Business, q12) Provider’s DPA Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on) yes (Enterprise Data Protection: DPA and Product Terms, Microsoft as processor, q2) Provider’s DPA Microsoft 365 Copilot (premium licence, organisations, add-on) yes (Microsoft Products and Services DPA and Product Terms; Microsoft as processor, q2) Provider’s DPA Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on) yes (Enterprise Data Protection: DPA and Product Terms, Microsoft as processor, q2) Provider’s DPA	Free yes (the Slack DPA page links, as "Data Processing Addendum Form", to the Salesforce Data Processing Addendum, Revision August 2026, pre-signed among others for Slack Technologies, LLC and Slack Technologies Limited; the customer signs it and sends it to Salesforce by email) Provider’s DPA Pro yes (the Slack DPA page links, as "Data Processing Addendum Form", to the Salesforce Data Processing Addendum, Revision August 2026, pre-signed among others for Slack Technologies, LLC and Slack Technologies Limited; the customer signs it and sends it to Salesforce by email) Provider’s DPA Business+ yes (the Slack DPA page links, as "Data Processing Addendum Form", to the Salesforce Data Processing Addendum, Revision August 2026, pre-signed among others for Slack Technologies, LLC and Slack Technologies Limited; the customer signs it and sends it to Salesforce by email) Provider’s DPA Enterprise+ yes (the Slack DPA page links, as "Data Processing Addendum Form", to the Salesforce Data Processing Addendum, Revision August 2026, pre-signed among others for Slack Technologies, LLC and Slack Technologies Limited; the customer signs it and sends it to Salesforce by email) Provider’s DPA

differs by tool	opt-out availableMicrosoft Copilot (consumer, free, personal Microsoft account) noCopilot in Microsoft 365 Personal / Family (consumer), Microsoft 365 Premium (consumer), Microsoft 365 Copilot Business (Add-on), Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on), Microsoft 365 Copilot (premium licence, organisations, add-on), Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on)	noall 4 plans
Details: Training on inputs	Microsoft Copilot (consumer, free, personal Microsoft account) "Except for certain categories of users or users who have opted out, Microsoft uses data from Bing, MSN, Copilot, and interactions with ads on Microsoft for AI training." Opt-out under Privacy > "Training on conversation activity" (q14, q15). Excluded, among others: users not signed in, under-18s, users in Brazil, China (excluding Hong Kong), Israel, Nigeria, South Korea, Vietnam (q14). Note: according to their own header text, q14 and q15 apply only to the older version of the Copilot app ("An updated version of the Microsoft Copilot app for web, desktop, and mobile devices is available as of August 18, 2026."). For the new version (article "your activity history", q27): "Prompts, responses, and your file contents when using the Microsoft Copilot app aren't used to train foundation models." According to q27, optional feedback is not used to train the foundation models. Copilot in Microsoft 365 Personal / Family (consumer) "We do not train Copilot on data from the following types of users: ... Users of Copilot within Microsoft 365 apps with Personal or Family subscriptions." (q14) Article on Copilot in Microsoft 365 apps for home users (Personal, Family, Premium, Pro): "Prompts, responses, and your file contents when using Copilot in Microsoft 365 apps aren't used to train foundation models." (q22) Microsoft 365 Premium (consumer) According to its header text, q22 applies "when you're using Copilot in Microsoft 365 apps for home, such as with a Microsoft 365 Personal, Family, Premium, or Pro plan": "Prompts, responses, and your file contents when using Copilot in Microsoft 365 apps aren't used to train foundation models." According to q22, optional feedback is used to improve Copilot, not to train the foundation models. Microsoft 365 Copilot Business (Add-on) "Prompts, responses, and data accessed through Microsoft Graph aren't used to train foundation LLMs, including those used by Microsoft Copilot." (q1) The retrieved documentation does not distinguish between Business and Enterprise; the Business pricing page names "Enterprise Data Protection (EDP)" for Copilot Business (q12). Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on) "Prompts and responses aren't used to train the underlying foundation models." (q16). Consumer page: users with an organisational Entra account are excluded from training (q14). Microsoft 365 Copilot (premium licence, organisations, add-on) "Prompts, responses, and data accessed through Microsoft Graph aren't used to train foundation LLMs, including those used by Microsoft Copilot." (q1) User feedback (optional) is not used to train the foundation LLMs (q1). Web search queries (Bing): "aren't used to train generative AI foundation models" (q10). Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on) "Prompts and responses aren't used to train the underlying foundation models." (q16). Consumer page: users with an organisational Entra account are excluded from training (q14).	Free Documentation does not differentiate by plan: "Customer data is never used to train third-party LLMs." and "Your Customer Data (like messages and files) is never used to train any LLMs." Pro Documentation does not differentiate by plan: "Customer data is never used to train third-party LLMs." and "Your Customer Data (like messages and files) is never used to train any LLMs." Business+ Documentation does not differentiate by plan: "Customer data is never used to train third-party LLMs." and "Your Customer Data (like messages and files) is never used to train any LLMs." Enterprise+ Documentation does not differentiate by plan: "Customer data is never used to train third-party LLMs." and "Your Customer Data (like messages and files) is never used to train any LLMs."

differs by tool	mixedMicrosoft Copilot (consumer, free, personal Microsoft account), Copilot in Microsoft 365 Personal / Family (consumer), Microsoft 365 Premium (consumer) EU optionMicrosoft 365 Copilot Business (Add-on), Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on), Microsoft 365 Copilot (premium licence, organisations, add-on), Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on)	US onlyFree, Pro mixedBusiness+, Enterprise+
Details: Data residency	Microsoft Copilot (consumer, free, personal Microsoft account) Microsoft Privacy Statement (September 2026, q19), section Storage and processing of personal data: "Personal data collected by Microsoft may be stored and processed in your region, in the United States, and in any other jurisdiction where Microsoft or its affiliates, subsidiaries, or service providers operate facilities." Major data centres in, among others, Austria, Finland, France, Germany, Ireland, Luxembourg, the Netherlands, the UK, the USA; "Typically, the primary storage location is in your region or in the United States". Copilot-specific location statement: not documented. Copilot in Microsoft 365 Personal / Family (consumer) Microsoft Privacy Statement (September 2026, q19), section Storage and processing of personal data: "Personal data collected by Microsoft may be stored and processed in your region, in the United States, and in any other jurisdiction where Microsoft or its affiliates, subsidiaries, or service providers operate facilities." Major data centres in, among others, Austria, Finland, France, Germany, Ireland, Luxembourg, the Netherlands, the UK, the USA; "Typically, the primary storage location is in your region or in the United States". Copilot-specific location statement: not documented. Microsoft 365 Premium (consumer) Microsoft Privacy Statement (September 2026, q19), section Storage and processing of personal data: "Personal data collected by Microsoft may be stored and processed in your region, in the United States, and in any other jurisdiction where Microsoft or its affiliates, subsidiaries, or service providers operate facilities." Major data centres in, among others, Austria, Finland, France, Germany, Ireland, Luxembourg, the Netherlands, the UK, the USA; "Typically, the primary storage location is in your region or in the United States". Copilot-specific location statement: not documented. Microsoft 365 Copilot Business (Add-on) Same arrangement as Microsoft 365 Copilot (Premium licence); a plan-specific deviation is not documented in the retrieved pages. According to q1/q6: calls to the LLM go to the nearest data centres in the region but may go to other regions at times of high utilisation; additional safeguards apply to EU users, "EU traffic stays within the EU Data Boundary". Exceptions according to the sources: (a) web search queries are excluded from the EU Data Boundary and the DPA (q2, q10); (b) Anthropic models are excluded from the EU Data Boundary (q2, q3); (c) Flex Routing: customers in the EU/EFTA can allow LLM inference outside the EU Data Boundary at peak load (USA, Canada or Australia); data at rest remains in the EUDB except for limited pseudonymised data; on by default for eligible tenants created after 2026-03-25, review of the setting recommended for older tenants (q4); (d) Copilot in Word/Excel/PowerPoint with Anthropic models: processing outside the EUDB (q5). Customers with Multi-Geo are not within the EUDB scope for Microsoft 365 (q4). Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on) According to q1/q6: calls to the LLM go to the nearest data centres in the region but may go to other regions at times of high utilisation; additional safeguards apply to EU users, "EU traffic stays within the EU Data Boundary". Exceptions according to the sources: (a) web search queries are excluded from the EU Data Boundary and the DPA (q2, q10); (b) Anthropic models are excluded from the EU Data Boundary (q2, q3); (c) Flex Routing: customers in the EU/EFTA can allow LLM inference outside the EU Data Boundary at peak load (USA, Canada or Australia); data at rest remains in the EUDB except for limited pseudonymised data; on by default for eligible tenants created after 2026-03-25, review of the setting recommended for older tenants (q4); (d) Copilot in Word/Excel/PowerPoint with Anthropic models: processing outside the EUDB (q5). Customers with Multi-Geo are not within the EUDB scope for Microsoft 365 (q4). Microsoft 365 Copilot (premium licence, organisations, add-on) According to q1/q6: calls to the LLM go to the nearest data centres in the region but may go to other regions at times of high utilisation; additional safeguards apply to EU users, "EU traffic stays within the EU Data Boundary". Exceptions according to the sources: (a) web search queries are excluded from the EU Data Boundary and the DPA (q2, q10); (b) Anthropic models are excluded from the EU Data Boundary (q2, q3); (c) Flex Routing: customers in the EU/EFTA can allow LLM inference outside the EU Data Boundary at peak load (USA, Canada or Australia); data at rest remains in the EUDB except for limited pseudonymised data; on by default for eligible tenants created after 2026-03-25, review of the setting recommended for older tenants (q4); (d) Copilot in Word/Excel/PowerPoint with Anthropic models: processing outside the EUDB (q5). Customers with Multi-Geo are not within the EUDB scope for Microsoft 365 (q4). Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on) According to q1/q6: calls to the LLM go to the nearest data centres in the region but may go to other regions at times of high utilisation; additional safeguards apply to EU users, "EU traffic stays within the EU Data Boundary". Exceptions according to the sources: (a) web search queries are excluded from the EU Data Boundary and the DPA (q2, q10); (b) Anthropic models are excluded from the EU Data Boundary (q2, q3); (c) Flex Routing: customers in the EU/EFTA can allow LLM inference outside the EU Data Boundary at peak load (USA, Canada or Australia); data at rest remains in the EUDB except for limited pseudonymised data; on by default for eligible tenants created after 2026-03-25, review of the setting recommended for older tenants (q4); (d) Copilot in Word/Excel/PowerPoint with Anthropic models: processing outside the EUDB (q5). Customers with Multi-Geo are not within the EUDB scope for Microsoft 365 (q4).	Free No choice of data region in Free/Pro: „If you’re using the free version of Slack or the Pro plan, you’ll need to upgrade to the Business+ plan first.“ According to Slack, data residency is only available in Business+ and Enterprise; without it, data is located in the USA („Existing user data will continue to reside in the United States“). Pro No choice of data region in Free/Pro: „If you’re using the free version of Slack or the Pro plan, you’ll need to upgrade to the Business+ plan first.“ According to Slack, data residency is only available in Business+ and Enterprise; without it, data is located in the USA („Existing user data will continue to reside in the United States“). Business+ Customers can choose a data region (Salesforce sub-processor documentation, Slack section, as of 2026-10-02: AWS incl. Germany, France, Sweden, Switzerland, UK); backups: Germany<->France, Sweden and Switzerland -> Germany; certain customer data may be stored outside the region; edge servers worldwide. Microsoft Azure with location USA is listed as generative AI provider for Slack. Slack help: third-party LLMs "hosted within our secure cloud infrastructure", data does not leave Slack-controlled infrastructure. Enterprise+ Customers can choose a data region (Salesforce sub-processor documentation, Slack section, as of 2026-10-02: AWS incl. Germany, France, Sweden, Switzerland, UK); backups: Germany<->France, Sweden and Switzerland -> Germany; certain customer data may be stored outside the region; edge servers worldwide. Microsoft Azure with location USA is listed as generative AI provider for Slack. Slack help: third-party LLMs "hosted within our secure cloud infrastructure", data does not leave Slack-controlled infrastructure.

	list availableall 7 plans	list availableall 4 plans
Details: List published	Microsoft Copilot (consumer, free, personal Microsoft account) not publicly documented (consumer pages do not name any sub-processors) Copilot in Microsoft 365 Personal / Family (consumer) not publicly documented Microsoft 365 Premium (consumer) not publicly documented Microsoft 365 Copilot Business (Add-on) Anthropic (sub-processor according to q3; Anthropic models in, among others, Microsoft Copilot, Researcher, Copilot Studio, Power Platform and Copilot in Microsoft 365 apps; deactivated by default for customers in the EU/EFTA/UK and excluded from the EU Data Boundary; excepted are "Anthropic models with Data Retention": the Product Terms and DPA do not apply to them, and Anthropic acts there as an independent processor, q3) OpenAI (added to the sub-processor list 2026-06-23, usable from 2026-07-09, activated by default for eligible commercial customers from 2026-07-24; included in the EU Data Boundary but excluded from in-country processing commitments; q8) SpaceXAI (list updated 2026-09-10, available to eligible customers from 2026-09-18; Frontier programme only, does not apply to customers in the EU/EFTA/UK; q9) Full list and number: not publicly documented on the retrieved pages (reference to the Service Trust Portal, sign-in required) Provider’s list Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on) Anthropic (sub-processor according to q3; Anthropic models in, among others, Microsoft Copilot, Researcher, Copilot Studio, Power Platform and Copilot in Microsoft 365 apps; deactivated by default for customers in the EU/EFTA/UK and excluded from the EU Data Boundary; excepted are "Anthropic models with Data Retention": the Product Terms and DPA do not apply to them, and Anthropic acts there as an independent processor, q3) OpenAI (added to the sub-processor list 2026-06-23, usable from 2026-07-09, activated by default for eligible commercial customers from 2026-07-24; included in the EU Data Boundary but excluded from in-country processing commitments; q8) SpaceXAI (list updated 2026-09-10, available to eligible customers from 2026-09-18; Frontier programme only, does not apply to customers in the EU/EFTA/UK; q9) Full list and number: not publicly documented on the retrieved pages (reference to the Service Trust Portal, sign-in required) Provider’s list Microsoft 365 Copilot (premium licence, organisations, add-on) Anthropic (sub-processor according to q3; Anthropic models in, among others, Microsoft Copilot, Researcher, Copilot Studio, Power Platform and Copilot in Microsoft 365 apps; deactivated by default for customers in the EU/EFTA/UK and excluded from the EU Data Boundary; excepted are "Anthropic models with Data Retention": the Product Terms and DPA do not apply to them, and Anthropic acts there as an independent processor, q3) OpenAI (added to the sub-processor list 2026-06-23, usable from 2026-07-09, activated by default for eligible commercial customers from 2026-07-24; included in the EU Data Boundary but excluded from in-country processing commitments; q8) SpaceXAI (list updated 2026-09-10, available to eligible customers from 2026-09-18; Frontier programme only, does not apply to customers in the EU/EFTA/UK; q9) Full list and number: not publicly documented on the retrieved pages (reference to the Service Trust Portal, sign-in required) Provider’s list Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on) Anthropic (sub-processor according to q3; Anthropic models in, among others, Microsoft Copilot, Researcher, Copilot Studio, Power Platform and Copilot in Microsoft 365 apps; deactivated by default for customers in the EU/EFTA/UK and excluded from the EU Data Boundary; excepted are "Anthropic models with Data Retention": the Product Terms and DPA do not apply to them, and Anthropic acts there as an independent processor, q3) OpenAI (added to the sub-processor list 2026-06-23, usable from 2026-07-09, activated by default for eligible commercial customers from 2026-07-24; included in the EU Data Boundary but excluded from in-country processing commitments; q8) SpaceXAI (list updated 2026-09-10, available to eligible customers from 2026-09-18; Frontier programme only, does not apply to customers in the EU/EFTA/UK; q9) Full list and number: not publicly documented on the retrieved pages (reference to the Service Trust Portal, sign-in required) Provider’s list	Free Amazon Web Services, Inc. (hosting incl. Slack AI, selectable data region incl. Germany, France, Sweden, Switzerland, UK; Amazon Chime for huddles; Amazon Transcribe for huddle/clip transcripts; CloudFront CDN) Microsoft Corporation (Microsoft Azure; "Provider of generative artificial intelligence services", location USA) SuSea, Inc. (dba You.com; web search for Slackbot, only if enabled by the customer; USA) Google LLC (hosting of email notifications; in the PDF layout a further line "Provider of generative artificial intelligence services" appears next to it, attribution unclear) Zendesk, Inc. (support tools; USA) Provider’s list Pro Amazon Web Services, Inc. (hosting incl. Slack AI, selectable data region incl. Germany, France, Sweden, Switzerland, UK; Amazon Chime for huddles; Amazon Transcribe for huddle/clip transcripts; CloudFront CDN) Microsoft Corporation (Microsoft Azure; "Provider of generative artificial intelligence services", location USA) SuSea, Inc. (dba You.com; web search for Slackbot, only if enabled by the customer; USA) Google LLC (hosting of email notifications; in the PDF layout a further line "Provider of generative artificial intelligence services" appears next to it, attribution unclear) Zendesk, Inc. (support tools; USA) Provider’s list Business+ Amazon Web Services, Inc. (hosting incl. Slack AI, selectable data region incl. Germany, France, Sweden, Switzerland, UK; Amazon Chime for huddles; Amazon Transcribe for huddle/clip transcripts; CloudFront CDN) Microsoft Corporation (Microsoft Azure; "Provider of generative artificial intelligence services", location USA) SuSea, Inc. (dba You.com; web search for Slackbot, only if enabled by the customer; USA) Google LLC (hosting of email notifications; in the PDF layout a further line "Provider of generative artificial intelligence services" appears next to it, attribution unclear) Zendesk, Inc. (support tools; USA) Provider’s list Enterprise+ Amazon Web Services, Inc. (hosting incl. Slack AI, selectable data region incl. Germany, France, Sweden, Switzerland, UK; Amazon Chime for huddles; Amazon Transcribe for huddle/clip transcripts; CloudFront CDN) Microsoft Corporation (Microsoft Azure; "Provider of generative artificial intelligence services", location USA) SuSea, Inc. (dba You.com; web search for Slackbot, only if enabled by the customer; USA) Google LLC (hosting of email notifications; in the PDF layout a further line "Provider of generative artificial intelligence services" appears next to it, attribution unclear) Zendesk, Inc. (support tools; USA) Provider’s list

differs by tool	Conversation activity stored for 18…Microsoft Copilot (consumer, free, personal Microsoft account) Conversation activity 18 months by defaultCopilot in Microsoft 365 Personal / Family (consumer) not publicly documentedMicrosoft 365 Premium (consumer) Prompts and responses are stored in…Microsoft 365 Copilot Business (Add-on), Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on), Microsoft 365 Copilot (premium licence, organisations, add-on), Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on)	Summaries and search answers ephemeralall 4 plans
Details: Data retention	Microsoft Copilot (consumer, free, personal Microsoft account)Conversation activity stored for 18 months by default, deletion individually or entirely possible at any time; uploaded files up to 18 months (q14, q15). Copilot in Microsoft 365 Personal / Family (consumer)Conversation activity 18 months by default (Copilot consumer FAQ, q14); q14 does not expressly state whether this applies identically to Copilot in M365 apps under a subscription. Microsoft 365 Premium (consumer)not publicly documented Microsoft 365 Copilot Business (Add-on)Prompts and responses are stored in Exchange (tenant) for audit/eDiscovery; retention configurable via Microsoft Purview; users can delete their Copilot history via the My Account portal (q1, q16). Fixed default period: not publicly documented on the retrieved pages. For "Anthropic models with Data Retention" (to be activated separately, Anthropic terms): Anthropic stores inputs/outputs for up to 30 days, in the case of suspected violations up to 2 years, classification scores up to 7 years (q3). DPA (version of 2026-05-22, q18): after expiry or termination of the subscription, customer data remains available for export in a limited-function account for 90 days and is then deleted within a further 90 days. Microsoft Purview (q26): the documentation describes periods only for configured retention policies (after expiry, items are moved to the SubstrateHolds folder, where they stay for at least 1 day; the timer job typically runs every 1–7 days). Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on)Prompts and responses are stored in Exchange (tenant) for audit/eDiscovery; retention configurable via Microsoft Purview; users can delete their Copilot history via the My Account portal (q1, q16). Fixed default period: not publicly documented on the retrieved pages. For "Anthropic models with Data Retention" (to be activated separately, Anthropic terms): Anthropic stores inputs/outputs for up to 30 days, in the case of suspected violations up to 2 years, classification scores up to 7 years (q3). DPA (version of 2026-05-22, q18): after expiry or termination of the subscription, customer data remains available for export in a limited-function account for 90 days and is then deleted within a further 90 days. Microsoft Purview (q26): the documentation describes periods only for configured retention policies (after expiry, items are moved to the SubstrateHolds folder, where they stay for at least 1 day; the timer job typically runs every 1–7 days). Microsoft 365 Copilot (premium licence, organisations, add-on)Prompts and responses are stored in Exchange (tenant) for audit/eDiscovery; retention configurable via Microsoft Purview; users can delete their Copilot history via the My Account portal (q1, q16). Fixed default period: not publicly documented on the retrieved pages. For "Anthropic models with Data Retention" (to be activated separately, Anthropic terms): Anthropic stores inputs/outputs for up to 30 days, in the case of suspected violations up to 2 years, classification scores up to 7 years (q3). DPA (version of 2026-05-22, q18): after expiry or termination of the subscription, customer data remains available for export in a limited-function account for 90 days and is then deleted within a further 90 days. Microsoft Purview (q26): the documentation describes periods only for configured retention policies (after expiry, items are moved to the SubstrateHolds folder, where they stay for at least 1 day; the timer job typically runs every 1–7 days). Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on)Prompts and responses are stored in Exchange (tenant) for audit/eDiscovery; retention configurable via Microsoft Purview; users can delete their Copilot history via the My Account portal (q1, q16). Fixed default period: not publicly documented on the retrieved pages. For "Anthropic models with Data Retention" (to be activated separately, Anthropic terms): Anthropic stores inputs/outputs for up to 30 days, in the case of suspected violations up to 2 years, classification scores up to 7 years (q3). DPA (version of 2026-05-22, q18): after expiry or termination of the subscription, customer data remains available for export in a limited-function account for 90 days and is then deleted within a further 90 days. Microsoft Purview (q26): the documentation describes periods only for configured retention policies (after expiry, items are moved to the SubstrateHolds folder, where they stay for at least 1 day; the timer job typically runs every 1–7 days).	FreeSummaries and search answers ephemeral (not stored); recaps stored for 90 days; LLMs "do not retain information once the request has been processed"; AI content saved in conversations/canvases follows the organisation's retention settings. ProSummaries and search answers ephemeral (not stored); recaps stored for 90 days; LLMs "do not retain information once the request has been processed"; AI content saved in conversations/canvases follows the organisation's retention settings. Business+Summaries and search answers ephemeral (not stored); recaps stored for 90 days; LLMs "do not retain information once the request has been processed"; AI content saved in conversations/canvases follows the organisation's retention settings. Enterprise+Summaries and search answers ephemeral (not stored); recaps stored for 90 days; LLMs "do not retain information once the request has been processed"; AI content saved in conversations/canvases follows the organisation's retention settings.

differs by tool	0Microsoft Copilot (consumer, free, personal Microsoft account) several tiersCopilot in Microsoft 365 Personal / Family (consumer), Microsoft 365 Copilot Business (Add-on) 19.99 USD/mo… (further prices in the details)Microsoft 365 Premium (consumer) no additional cost with eligible…Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on), Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on) 30 USD/user/mo… (further prices in the details)Microsoft 365 Copilot (premium licence, organisations, add-on)	0 EURFree 8.25 EUR/user/mo… (further prices in the details)Pro 18 EUR/user/mo… (further prices in the details)Business+ 45 EUR/user/moEnterprise+
Details: Price	Microsoft Copilot (consumer, free, personal Microsoft account) 0 (free use; consumer pricing page not retrieved) Copilot in Microsoft 365 Personal / Family (consumer) Microsoft 365 Personal: USD 9.99/month or USD 99.99/year; Microsoft 365 Family: USD 12.99/month or USD 129.99/year (US comparison page, q20). Germany (q28, as of 2026-10-18): Microsoft 365 Single EUR 10.00/month or EUR 99.00/year, Microsoft 365 Family EUR 13.00/month or EUR 129.00/year; no indication whether VAT is included. Microsoft 365 Premium (consumer) USD 19.99/month or USD 199.99/year (US comparison page, q20). Germany (q28, as of 2026-10-18): EUR 22.00/month or EUR 219.00/year; no indication whether VAT is included. Microsoft 365 Copilot Business (Add-on) Add-on: USD 18 per user/month with annual payment (promotional price, "Originally starting from $21.00 now starting from $18.00"), USD 25.20 monthly; qualifying plan required. Bundled: Business Standard with Copilot USD 23.50 (annual) / USD 28.20 (monthly); Business Premium with Copilot USD 32.00 / USD 38.40 (q12). Germany (q29, as of 2026-10-18, "prices plus VAT" (translated)): add-on Microsoft 365 Copilot Business EUR 15.60 per user/month with annual billing ("Originally starting from 18,20 € now starting from 15,60 €"), EUR 21.84 with a monthly subscription; bundles with Business Standard or Business Premium EUR 20.36 or EUR 27.73 (annual) and EUR 24.43 or EUR 33.28 (monthly). The page offers the filters "plans with Teams" and "plans without Teams" (translated labels); which filter the bundle prices in the page text belong to cannot be determined from the retrieved text Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on) no additional cost with eligible Microsoft 365 plans ("Microsoft Copilot Chat is available at no additional cost for all Microsoft Entra account users with an eligible Microsoft 365 subscription.", q13); eligible plans include Microsoft 365 Business Premium, Business Standard and Business Basic (q24). Cost of the base plan not recorded. Microsoft 365 Copilot (premium licence, organisations, add-on) USD 30 per user/month with annual payment, USD 31.50 with monthly payment; qualifying Microsoft 365 plan required separately (q13). Germany (q30, as of 2026-10-18): EUR 26.00 per user/month with annual billing or EUR 27.30 with monthly payment (annual subscription), "prices plus VAT" (translated) Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on) no additional cost with eligible Microsoft 365 plans ("Microsoft Copilot Chat is available at no additional cost for all Microsoft Entra account users with an eligible Microsoft 365 subscription.", q13); eligible plans include Microsoft 365 E7, E5, E3, F3, F1, G5, G3, A5, A3, A1 as well as Office 365 E5, E3, E1 Plus, E1, F3, G and A plans (q24). Cost of the base plan not recorded.	Free EUR 0 ("free forever", as of 2026-10-14) Pro EUR 8.25 per user/month with monthly payment or EUR 6.75 with annual payment (as of 2026-10-14, pricing page additionally names a 50 % discount for 3 months) Business+ EUR 18 per user/month with monthly payment or EUR 15 with annual payment (as of 2026-10-14) Enterprise+ EUR 45 per user/month with annual payment (as of 2026-10-14; contact sales)
differs by tool	yesall 7 plans	limitedFree yesPro, Business+, Enterprise+
Details: AI features included	Microsoft Copilot (consumer, free, personal Microsoft account) yes Copilot in Microsoft 365 Personal / Family (consumer) yes (Copilot in Microsoft 365 apps for subscribers) Microsoft 365 Premium (consumer) yes (according to the comparison page, Premium includes "Everything in Microsoft 365 Family, plus" further Copilot features, q20; q22 names Premium as a plan "for home" with Copilot in Microsoft 365 apps) Microsoft 365 Copilot Business (Add-on) yes (Copilot add-on for qualifying Business plans) Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on) yes (chat with web data; work data only via upload/selection; basic features in Word/Excel/PowerPoint/OneNote without Priority Access, q6) Microsoft 365 Copilot (premium licence, organisations, add-on) yes (chat with web and work data via Microsoft Graph and Work IQ, Copilot in Word/Excel/PowerPoint/Outlook/Teams, Priority Access, agents) Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on) yes (chat with web data; work data only via upload/selection; basic features in Word/Excel/PowerPoint/OneNote without Priority Access, q6)	Free limited (pricing page 2026-10-18: all AI features greyed out in the Free column and not included for Free in the comparison table; help article table without a Free column, footnote: "Slackbot may be available to preview in a limited capacity for workspaces on the free and Pro plans.") Pro yes (limited: summaries, huddle notes, automatic search filters; Slackbot only as a limited preview/trial) Business+ yes (including search answers, recaps, file summaries, translations, workflow automation, canvas generation, Slackbot) Enterprise+ yes (all AI features incl. Enterprise Search)

	27 sources	10 sources
Details: Sources with retrieval date	Data, Privacy, and Security for Microsoft Copilot (Microsoft Learn)Docs, retrieved 18 Oct 2026 Enterprise data protection in Microsoft Copilot and Microsoft Copilot Chat (Microsoft Learn)Docs, retrieved 18 Oct 2026 Anthropic models in Microsoft Online Services (Microsoft Learn, as of 2026-09-18)Docs, retrieved 18 Oct 2026 Flex routing (EU and EFTA) (Microsoft Learn)Docs, retrieved 18 Oct 2026 Copilot in Microsoft 365 apps with Anthropic models (Microsoft Learn)Docs, retrieved 14 Oct 2026 Microsoft Copilot overview (licence tiers, EUDB, EDP; Microsoft Learn)Docs, retrieved 18 Oct 2026 Allow external language models for generative responses (Power Platform, Microsoft Learn, as of 2026-10-12)Docs, retrieved 14 Oct 2026 OpenAI as a subprocessor in Microsoft Online Services (Microsoft Learn)Docs, retrieved 14 Oct 2026 SpaceXAI as a subprocessor in Microsoft Online Services (Microsoft Learn)Docs, retrieved 14 Oct 2026 Data, privacy, and security for web search in Microsoft Copilot and Microsoft Copilot Chat (Microsoft Learn)Docs, retrieved 14 Oct 2026 What is the EU Data Boundary? (Microsoft Learn)Docs, retrieved 14 Oct 2026 Microsoft Copilot Plans and Pricing (Microsoft)Pricing page, retrieved 18 Oct 2026 Microsoft 365 Copilot for Enterprise (Microsoft)Pricing page, retrieved 14 Oct 2026 Privacy FAQ for Microsoft Copilot (Microsoft Support, consumer)Docs, retrieved 14 Oct 2026 Microsoft Copilot privacy controls (Microsoft Support, consumer)Docs, retrieved 14 Oct 2026 Privacy and protections (Microsoft Copilot Chat, Microsoft Learn)Docs, retrieved 14 Oct 2026 Microsoft Products and Services Data Protection Addendum (DPA), version of 2026-05-22 (Word download, evaluated)DPA, retrieved 18 Oct 2026 Microsoft Privacy Statement (Last Updated: September 2026)Privacy notice, retrieved 18 Oct 2026 Compare all Microsoft 365 plans (consumer, US)Pricing page, retrieved 14 Oct 2026 Copilot in Microsoft 365 apps for home: your data and privacy (Microsoft Support)Privacy notice, retrieved 14 Oct 2026 Microsoft Copilot for individuals: your data, privacy, and responsible AI (Microsoft Support)Privacy notice, retrieved 18 Oct 2026 Manage Microsoft Copilot Chat (section Eligibility, as of 2026-10-12)Documentation, retrieved 14 Oct 2026 Learn about retention for Copilot and AI apps (Microsoft Learn, as of 2026-06-25)Documentation, retrieved 18 Oct 2026 Microsoft Copilot for individuals: your activity history (Microsoft Support, new app version)Privacy notice, retrieved 18 Oct 2026 Compare Microsoft 365 plans (consumer, Germany)Pricing page, retrieved 18 Oct 2026 Microsoft Copilot pricing for small and medium-sized businesses (Germany)Pricing page, retrieved 18 Oct 2026 Microsoft 365 Copilot for enterprises (Germany)Pricing page, retrieved 18 Oct 2026 All details on the tool page	Security for AI features in SlackDocumentation, retrieved 18 Oct 2026 Guide to AI features in SlackDocumentation, retrieved 18 Oct 2026 Slack PricingPricing page, retrieved 18 Oct 2026 Updates to feature availability and pricing for Slack plansDocumentation, retrieved 14 Oct 2026 Slack Privacy Policy (Effective 2023-07-05)Privacy notice, retrieved 18 Oct 2026 Salesforce Infrastructure and Sub-processors (Published 2026-10-02), section SlackSub-processor list, retrieved 14 Oct 2026 Slack Help Center: Data residency for SlackHelp article, retrieved 18 Oct 2026 Salesforce Data Processing Addendum (Revision August 2026), linked from the Slack DPA pageDPA, retrieved 18 Oct 2026 Slack artificial intelligence, machine learning, and data usageDocumentation, retrieved 18 Oct 2026 Slack AI PrinciplesDocumentation, retrieved 18 Oct 2026 All details on the tool page

Contract / DPA

differs by tool: Microsoft 365 Copilot
not publicly documentedMicrosoft Copilot (consumer, free, personal Microsoft account), Copilot in Microsoft 365 Personal / Family (consumer), Microsoft 365 Premium (consumer)
yesMicrosoft 365 Copilot Business (Add-on), Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on), Microsoft 365 Copilot (premium licence, organisations, add-on), Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on); Slack AIyesall 4 plans; Microsoft 365 Copilot
Microsoft Copilot (consumer, free, personal Microsoft account)
not publicly documented (consumer pages refer to the Microsoft privacy statement; no DPA named, q14/q15)
Copilot in Microsoft 365 Personal / Family (consumer)
not publicly documented (consumer subscription; no DPA named in q14/q15)
Microsoft 365 Premium (consumer)
not publicly documented
Microsoft 365 Copilot Business (Add-on)
yes (according to q2, the DPA and Product Terms apply to Copilot use by organisations with Enterprise Data Protection; the comparison table on the Business pricing page lists the row "Enterprise Data Protection (EDP), management, compliance, and controls" for Copilot Business, q12)
Provider’s DPA
Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on)
yes (Enterprise Data Protection: DPA and Product Terms, Microsoft as processor, q2)
Provider’s DPA
Microsoft 365 Copilot (premium licence, organisations, add-on)
yes (Microsoft Products and Services DPA and Product Terms; Microsoft as processor, q2)
Provider’s DPA
Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on)
yes (Enterprise Data Protection: DPA and Product Terms, Microsoft as processor, q2)
Provider’s DPA
Slack AI
Free
yes (the Slack DPA page links, as "Data Processing Addendum Form", to the Salesforce Data Processing Addendum, Revision August 2026, pre-signed among others for Slack Technologies, LLC and Slack Technologies Limited; the customer signs it and sends it to Salesforce by email)
Provider’s DPA
Pro
yes (the Slack DPA page links, as "Data Processing Addendum Form", to the Salesforce Data Processing Addendum, Revision August 2026, pre-signed among others for Slack Technologies, LLC and Slack Technologies Limited; the customer signs it and sends it to Salesforce by email)
Provider’s DPA
Business+
yes (the Slack DPA page links, as "Data Processing Addendum Form", to the Salesforce Data Processing Addendum, Revision August 2026, pre-signed among others for Slack Technologies, LLC and Slack Technologies Limited; the customer signs it and sends it to Salesforce by email)
Provider’s DPA
Enterprise+
yes (the Slack DPA page links, as "Data Processing Addendum Form", to the Salesforce Data Processing Addendum, Revision August 2026, pre-signed among others for Slack Technologies, LLC and Slack Technologies Limited; the customer signs it and sends it to Salesforce by email)
Provider’s DPA

Training

differs by tool: Microsoft 365 Copilot
opt-out availableMicrosoft Copilot (consumer, free, personal Microsoft account)
noCopilot in Microsoft 365 Personal / Family (consumer), Microsoft 365 Premium (consumer), Microsoft 365 Copilot Business (Add-on), Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on), Microsoft 365 Copilot (premium licence, organisations, add-on), Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on); Slack AInoall 4 plans; Microsoft 365 Copilot
Microsoft Copilot (consumer, free, personal Microsoft account)
"Except for certain categories of users or users who have opted out, Microsoft uses data from Bing, MSN, Copilot, and interactions with ads on Microsoft for AI training." Opt-out under Privacy > "Training on conversation activity" (q14, q15). Excluded, among others: users not signed in, under-18s, users in Brazil, China (excluding Hong Kong), Israel, Nigeria, South Korea, Vietnam (q14). Note: according to their own header text, q14 and q15 apply only to the older version of the Copilot app ("An updated version of the Microsoft Copilot app for web, desktop, and mobile devices is available as of August 18, 2026."). For the new version (article "your activity history", q27): "Prompts, responses, and your file contents when using the Microsoft Copilot app aren't used to train foundation models." According to q27, optional feedback is not used to train the foundation models.
Copilot in Microsoft 365 Personal / Family (consumer)
"We do not train Copilot on data from the following types of users: ... Users of Copilot within Microsoft 365 apps with Personal or Family subscriptions." (q14) Article on Copilot in Microsoft 365 apps for home users (Personal, Family, Premium, Pro): "Prompts, responses, and your file contents when using Copilot in Microsoft 365 apps aren't used to train foundation models." (q22)
Microsoft 365 Premium (consumer)
According to its header text, q22 applies "when you're using Copilot in Microsoft 365 apps for home, such as with a Microsoft 365 Personal, Family, Premium, or Pro plan": "Prompts, responses, and your file contents when using Copilot in Microsoft 365 apps aren't used to train foundation models." According to q22, optional feedback is used to improve Copilot, not to train the foundation models.
Microsoft 365 Copilot Business (Add-on)
"Prompts, responses, and data accessed through Microsoft Graph aren't used to train foundation LLMs, including those used by Microsoft Copilot." (q1) The retrieved documentation does not distinguish between Business and Enterprise; the Business pricing page names "Enterprise Data Protection (EDP)" for Copilot Business (q12).
Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on)
"Prompts and responses aren't used to train the underlying foundation models." (q16). Consumer page: users with an organisational Entra account are excluded from training (q14).
Microsoft 365 Copilot (premium licence, organisations, add-on)
"Prompts, responses, and data accessed through Microsoft Graph aren't used to train foundation LLMs, including those used by Microsoft Copilot." (q1) User feedback (optional) is not used to train the foundation LLMs (q1). Web search queries (Bing): "aren't used to train generative AI foundation models" (q10).
Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on)
"Prompts and responses aren't used to train the underlying foundation models." (q16). Consumer page: users with an organisational Entra account are excluded from training (q14).
Slack AI
Free
Documentation does not differentiate by plan: "Customer data is never used to train third-party LLMs." and "Your Customer Data (like messages and files) is never used to train any LLMs."
Pro
Documentation does not differentiate by plan: "Customer data is never used to train third-party LLMs." and "Your Customer Data (like messages and files) is never used to train any LLMs."
Business+
Documentation does not differentiate by plan: "Customer data is never used to train third-party LLMs." and "Your Customer Data (like messages and files) is never used to train any LLMs."
Enterprise+
Documentation does not differentiate by plan: "Customer data is never used to train third-party LLMs." and "Your Customer Data (like messages and files) is never used to train any LLMs."

Hosting

differs by tool: Microsoft 365 Copilot
mixedMicrosoft Copilot (consumer, free, personal Microsoft account), Copilot in Microsoft 365 Personal / Family (consumer), Microsoft 365 Premium (consumer)
EU optionMicrosoft 365 Copilot Business (Add-on), Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on), Microsoft 365 Copilot (premium licence, organisations, add-on), Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on); Slack AI
US onlyFree, Pro
mixedBusiness+, Enterprise+; Microsoft 365 Copilot
Microsoft Copilot (consumer, free, personal Microsoft account)
Microsoft Privacy Statement (September 2026, q19), section Storage and processing of personal data: "Personal data collected by Microsoft may be stored and processed in your region, in the United States, and in any other jurisdiction where Microsoft or its affiliates, subsidiaries, or service providers operate facilities." Major data centres in, among others, Austria, Finland, France, Germany, Ireland, Luxembourg, the Netherlands, the UK, the USA; "Typically, the primary storage location is in your region or in the United States". Copilot-specific location statement: not documented.
Copilot in Microsoft 365 Personal / Family (consumer)
Microsoft Privacy Statement (September 2026, q19), section Storage and processing of personal data: "Personal data collected by Microsoft may be stored and processed in your region, in the United States, and in any other jurisdiction where Microsoft or its affiliates, subsidiaries, or service providers operate facilities." Major data centres in, among others, Austria, Finland, France, Germany, Ireland, Luxembourg, the Netherlands, the UK, the USA; "Typically, the primary storage location is in your region or in the United States". Copilot-specific location statement: not documented.
Microsoft 365 Premium (consumer)
Microsoft Privacy Statement (September 2026, q19), section Storage and processing of personal data: "Personal data collected by Microsoft may be stored and processed in your region, in the United States, and in any other jurisdiction where Microsoft or its affiliates, subsidiaries, or service providers operate facilities." Major data centres in, among others, Austria, Finland, France, Germany, Ireland, Luxembourg, the Netherlands, the UK, the USA; "Typically, the primary storage location is in your region or in the United States". Copilot-specific location statement: not documented.
Microsoft 365 Copilot Business (Add-on)
Same arrangement as Microsoft 365 Copilot (Premium licence); a plan-specific deviation is not documented in the retrieved pages. According to q1/q6: calls to the LLM go to the nearest data centres in the region but may go to other regions at times of high utilisation; additional safeguards apply to EU users, "EU traffic stays within the EU Data Boundary". Exceptions according to the sources: (a) web search queries are excluded from the EU Data Boundary and the DPA (q2, q10); (b) Anthropic models are excluded from the EU Data Boundary (q2, q3); (c) Flex Routing: customers in the EU/EFTA can allow LLM inference outside the EU Data Boundary at peak load (USA, Canada or Australia); data at rest remains in the EUDB except for limited pseudonymised data; on by default for eligible tenants created after 2026-03-25, review of the setting recommended for older tenants (q4); (d) Copilot in Word/Excel/PowerPoint with Anthropic models: processing outside the EUDB (q5). Customers with Multi-Geo are not within the EUDB scope for Microsoft 365 (q4).
Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on)
According to q1/q6: calls to the LLM go to the nearest data centres in the region but may go to other regions at times of high utilisation; additional safeguards apply to EU users, "EU traffic stays within the EU Data Boundary". Exceptions according to the sources: (a) web search queries are excluded from the EU Data Boundary and the DPA (q2, q10); (b) Anthropic models are excluded from the EU Data Boundary (q2, q3); (c) Flex Routing: customers in the EU/EFTA can allow LLM inference outside the EU Data Boundary at peak load (USA, Canada or Australia); data at rest remains in the EUDB except for limited pseudonymised data; on by default for eligible tenants created after 2026-03-25, review of the setting recommended for older tenants (q4); (d) Copilot in Word/Excel/PowerPoint with Anthropic models: processing outside the EUDB (q5). Customers with Multi-Geo are not within the EUDB scope for Microsoft 365 (q4).
Microsoft 365 Copilot (premium licence, organisations, add-on)
According to q1/q6: calls to the LLM go to the nearest data centres in the region but may go to other regions at times of high utilisation; additional safeguards apply to EU users, "EU traffic stays within the EU Data Boundary". Exceptions according to the sources: (a) web search queries are excluded from the EU Data Boundary and the DPA (q2, q10); (b) Anthropic models are excluded from the EU Data Boundary (q2, q3); (c) Flex Routing: customers in the EU/EFTA can allow LLM inference outside the EU Data Boundary at peak load (USA, Canada or Australia); data at rest remains in the EUDB except for limited pseudonymised data; on by default for eligible tenants created after 2026-03-25, review of the setting recommended for older tenants (q4); (d) Copilot in Word/Excel/PowerPoint with Anthropic models: processing outside the EUDB (q5). Customers with Multi-Geo are not within the EUDB scope for Microsoft 365 (q4).
Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on)
According to q1/q6: calls to the LLM go to the nearest data centres in the region but may go to other regions at times of high utilisation; additional safeguards apply to EU users, "EU traffic stays within the EU Data Boundary". Exceptions according to the sources: (a) web search queries are excluded from the EU Data Boundary and the DPA (q2, q10); (b) Anthropic models are excluded from the EU Data Boundary (q2, q3); (c) Flex Routing: customers in the EU/EFTA can allow LLM inference outside the EU Data Boundary at peak load (USA, Canada or Australia); data at rest remains in the EUDB except for limited pseudonymised data; on by default for eligible tenants created after 2026-03-25, review of the setting recommended for older tenants (q4); (d) Copilot in Word/Excel/PowerPoint with Anthropic models: processing outside the EUDB (q5). Customers with Multi-Geo are not within the EUDB scope for Microsoft 365 (q4).
Slack AI
Free
No choice of data region in Free/Pro: „If you’re using the free version of Slack or the Pro plan, you’ll need to upgrade to the Business+ plan first.“ According to Slack, data residency is only available in Business+ and Enterprise; without it, data is located in the USA („Existing user data will continue to reside in the United States“).
Pro
No choice of data region in Free/Pro: „If you’re using the free version of Slack or the Pro plan, you’ll need to upgrade to the Business+ plan first.“ According to Slack, data residency is only available in Business+ and Enterprise; without it, data is located in the USA („Existing user data will continue to reside in the United States“).
Business+
Customers can choose a data region (Salesforce sub-processor documentation, Slack section, as of 2026-10-02: AWS incl. Germany, France, Sweden, Switzerland, UK); backups: Germany<->France, Sweden and Switzerland -> Germany; certain customer data may be stored outside the region; edge servers worldwide. Microsoft Azure with location USA is listed as generative AI provider for Slack. Slack help: third-party LLMs "hosted within our secure cloud infrastructure", data does not leave Slack-controlled infrastructure.
Enterprise+
Customers can choose a data region (Salesforce sub-processor documentation, Slack section, as of 2026-10-02: AWS incl. Germany, France, Sweden, Switzerland, UK); backups: Germany<->France, Sweden and Switzerland -> Germany; certain customer data may be stored outside the region; edge servers worldwide. Microsoft Azure with location USA is listed as generative AI provider for Slack. Slack help: third-party LLMs "hosted within our secure cloud infrastructure", data does not leave Slack-controlled infrastructure.

Sub-processors

: Microsoft 365 Copilotlist availableall 7 plans; Slack AIlist availableall 4 plans; Microsoft 365 Copilot
Microsoft Copilot (consumer, free, personal Microsoft account)
not publicly documented (consumer pages do not name any sub-processors)
Copilot in Microsoft 365 Personal / Family (consumer)
not publicly documented
Microsoft 365 Premium (consumer)
not publicly documented
Microsoft 365 Copilot Business (Add-on)
Anthropic (sub-processor according to q3; Anthropic models in, among others, Microsoft Copilot, Researcher, Copilot Studio, Power Platform and Copilot in Microsoft 365 apps; deactivated by default for customers in the EU/EFTA/UK and excluded from the EU Data Boundary; excepted are "Anthropic models with Data Retention": the Product Terms and DPA do not apply to them, and Anthropic acts there as an independent processor, q3)
OpenAI (added to the sub-processor list 2026-06-23, usable from 2026-07-09, activated by default for eligible commercial customers from 2026-07-24; included in the EU Data Boundary but excluded from in-country processing commitments; q8)
SpaceXAI (list updated 2026-09-10, available to eligible customers from 2026-09-18; Frontier programme only, does not apply to customers in the EU/EFTA/UK; q9)
Full list and number: not publicly documented on the retrieved pages (reference to the Service Trust Portal, sign-in required)
Provider’s list
Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on)
Anthropic (sub-processor according to q3; Anthropic models in, among others, Microsoft Copilot, Researcher, Copilot Studio, Power Platform and Copilot in Microsoft 365 apps; deactivated by default for customers in the EU/EFTA/UK and excluded from the EU Data Boundary; excepted are "Anthropic models with Data Retention": the Product Terms and DPA do not apply to them, and Anthropic acts there as an independent processor, q3)
OpenAI (added to the sub-processor list 2026-06-23, usable from 2026-07-09, activated by default for eligible commercial customers from 2026-07-24; included in the EU Data Boundary but excluded from in-country processing commitments; q8)
SpaceXAI (list updated 2026-09-10, available to eligible customers from 2026-09-18; Frontier programme only, does not apply to customers in the EU/EFTA/UK; q9)
Full list and number: not publicly documented on the retrieved pages (reference to the Service Trust Portal, sign-in required)
Provider’s list
Microsoft 365 Copilot (premium licence, organisations, add-on)
Anthropic (sub-processor according to q3; Anthropic models in, among others, Microsoft Copilot, Researcher, Copilot Studio, Power Platform and Copilot in Microsoft 365 apps; deactivated by default for customers in the EU/EFTA/UK and excluded from the EU Data Boundary; excepted are "Anthropic models with Data Retention": the Product Terms and DPA do not apply to them, and Anthropic acts there as an independent processor, q3)
OpenAI (added to the sub-processor list 2026-06-23, usable from 2026-07-09, activated by default for eligible commercial customers from 2026-07-24; included in the EU Data Boundary but excluded from in-country processing commitments; q8)
SpaceXAI (list updated 2026-09-10, available to eligible customers from 2026-09-18; Frontier programme only, does not apply to customers in the EU/EFTA/UK; q9)
Full list and number: not publicly documented on the retrieved pages (reference to the Service Trust Portal, sign-in required)
Provider’s list
Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on)
Anthropic (sub-processor according to q3; Anthropic models in, among others, Microsoft Copilot, Researcher, Copilot Studio, Power Platform and Copilot in Microsoft 365 apps; deactivated by default for customers in the EU/EFTA/UK and excluded from the EU Data Boundary; excepted are "Anthropic models with Data Retention": the Product Terms and DPA do not apply to them, and Anthropic acts there as an independent processor, q3)
OpenAI (added to the sub-processor list 2026-06-23, usable from 2026-07-09, activated by default for eligible commercial customers from 2026-07-24; included in the EU Data Boundary but excluded from in-country processing commitments; q8)
SpaceXAI (list updated 2026-09-10, available to eligible customers from 2026-09-18; Frontier programme only, does not apply to customers in the EU/EFTA/UK; q9)
Full list and number: not publicly documented on the retrieved pages (reference to the Service Trust Portal, sign-in required)
Provider’s list
Slack AI
Free
Amazon Web Services, Inc. (hosting incl. Slack AI, selectable data region incl. Germany, France, Sweden, Switzerland, UK; Amazon Chime for huddles; Amazon Transcribe for huddle/clip transcripts; CloudFront CDN)
Microsoft Corporation (Microsoft Azure; "Provider of generative artificial intelligence services", location USA)
SuSea, Inc. (dba You.com; web search for Slackbot, only if enabled by the customer; USA)
Google LLC (hosting of email notifications; in the PDF layout a further line "Provider of generative artificial intelligence services" appears next to it, attribution unclear)
Zendesk, Inc. (support tools; USA)
Provider’s list
Pro
Amazon Web Services, Inc. (hosting incl. Slack AI, selectable data region incl. Germany, France, Sweden, Switzerland, UK; Amazon Chime for huddles; Amazon Transcribe for huddle/clip transcripts; CloudFront CDN)
Microsoft Corporation (Microsoft Azure; "Provider of generative artificial intelligence services", location USA)
SuSea, Inc. (dba You.com; web search for Slackbot, only if enabled by the customer; USA)
Google LLC (hosting of email notifications; in the PDF layout a further line "Provider of generative artificial intelligence services" appears next to it, attribution unclear)
Zendesk, Inc. (support tools; USA)
Provider’s list
Business+
Amazon Web Services, Inc. (hosting incl. Slack AI, selectable data region incl. Germany, France, Sweden, Switzerland, UK; Amazon Chime for huddles; Amazon Transcribe for huddle/clip transcripts; CloudFront CDN)
Microsoft Corporation (Microsoft Azure; "Provider of generative artificial intelligence services", location USA)
SuSea, Inc. (dba You.com; web search for Slackbot, only if enabled by the customer; USA)
Google LLC (hosting of email notifications; in the PDF layout a further line "Provider of generative artificial intelligence services" appears next to it, attribution unclear)
Zendesk, Inc. (support tools; USA)
Provider’s list
Enterprise+
Amazon Web Services, Inc. (hosting incl. Slack AI, selectable data region incl. Germany, France, Sweden, Switzerland, UK; Amazon Chime for huddles; Amazon Transcribe for huddle/clip transcripts; CloudFront CDN)
Microsoft Corporation (Microsoft Azure; "Provider of generative artificial intelligence services", location USA)
SuSea, Inc. (dba You.com; web search for Slackbot, only if enabled by the customer; USA)
Google LLC (hosting of email notifications; in the PDF layout a further line "Provider of generative artificial intelligence services" appears next to it, attribution unclear)
Zendesk, Inc. (support tools; USA)
Provider’s list

Retention

differs by tool: Microsoft 365 Copilot
Conversation activity stored for 18…Microsoft Copilot (consumer, free, personal Microsoft account)
Conversation activity 18 months by defaultCopilot in Microsoft 365 Personal / Family (consumer)
not publicly documentedMicrosoft 365 Premium (consumer)
Prompts and responses are stored in…Microsoft 365 Copilot Business (Add-on), Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on), Microsoft 365 Copilot (premium licence, organisations, add-on), Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on); Slack AISummaries and search answers ephemeralall 4 plans; Microsoft 365 Copilot
Microsoft Copilot (consumer, free, personal Microsoft account)Conversation activity stored for 18 months by default, deletion individually or entirely possible at any time; uploaded files up to 18 months (q14, q15).
Copilot in Microsoft 365 Personal / Family (consumer)Conversation activity 18 months by default (Copilot consumer FAQ, q14); q14 does not expressly state whether this applies identically to Copilot in M365 apps under a subscription.
Microsoft 365 Premium (consumer)not publicly documented
Microsoft 365 Copilot Business (Add-on)Prompts and responses are stored in Exchange (tenant) for audit/eDiscovery; retention configurable via Microsoft Purview; users can delete their Copilot history via the My Account portal (q1, q16). Fixed default period: not publicly documented on the retrieved pages. For "Anthropic models with Data Retention" (to be activated separately, Anthropic terms): Anthropic stores inputs/outputs for up to 30 days, in the case of suspected violations up to 2 years, classification scores up to 7 years (q3). DPA (version of 2026-05-22, q18): after expiry or termination of the subscription, customer data remains available for export in a limited-function account for 90 days and is then deleted within a further 90 days. Microsoft Purview (q26): the documentation describes periods only for configured retention policies (after expiry, items are moved to the SubstrateHolds folder, where they stay for at least 1 day; the timer job typically runs every 1–7 days).
Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on)Prompts and responses are stored in Exchange (tenant) for audit/eDiscovery; retention configurable via Microsoft Purview; users can delete their Copilot history via the My Account portal (q1, q16). Fixed default period: not publicly documented on the retrieved pages. For "Anthropic models with Data Retention" (to be activated separately, Anthropic terms): Anthropic stores inputs/outputs for up to 30 days, in the case of suspected violations up to 2 years, classification scores up to 7 years (q3). DPA (version of 2026-05-22, q18): after expiry or termination of the subscription, customer data remains available for export in a limited-function account for 90 days and is then deleted within a further 90 days. Microsoft Purview (q26): the documentation describes periods only for configured retention policies (after expiry, items are moved to the SubstrateHolds folder, where they stay for at least 1 day; the timer job typically runs every 1–7 days).
Microsoft 365 Copilot (premium licence, organisations, add-on)Prompts and responses are stored in Exchange (tenant) for audit/eDiscovery; retention configurable via Microsoft Purview; users can delete their Copilot history via the My Account portal (q1, q16). Fixed default period: not publicly documented on the retrieved pages. For "Anthropic models with Data Retention" (to be activated separately, Anthropic terms): Anthropic stores inputs/outputs for up to 30 days, in the case of suspected violations up to 2 years, classification scores up to 7 years (q3). DPA (version of 2026-05-22, q18): after expiry or termination of the subscription, customer data remains available for export in a limited-function account for 90 days and is then deleted within a further 90 days. Microsoft Purview (q26): the documentation describes periods only for configured retention policies (after expiry, items are moved to the SubstrateHolds folder, where they stay for at least 1 day; the timer job typically runs every 1–7 days).
Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on)Prompts and responses are stored in Exchange (tenant) for audit/eDiscovery; retention configurable via Microsoft Purview; users can delete their Copilot history via the My Account portal (q1, q16). Fixed default period: not publicly documented on the retrieved pages. For "Anthropic models with Data Retention" (to be activated separately, Anthropic terms): Anthropic stores inputs/outputs for up to 30 days, in the case of suspected violations up to 2 years, classification scores up to 7 years (q3). DPA (version of 2026-05-22, q18): after expiry or termination of the subscription, customer data remains available for export in a limited-function account for 90 days and is then deleted within a further 90 days. Microsoft Purview (q26): the documentation describes periods only for configured retention policies (after expiry, items are moved to the SubstrateHolds folder, where they stay for at least 1 day; the timer job typically runs every 1–7 days).
Slack AI
FreeSummaries and search answers ephemeral (not stored); recaps stored for 90 days; LLMs "do not retain information once the request has been processed"; AI content saved in conversations/canvases follows the organisation's retention settings.
ProSummaries and search answers ephemeral (not stored); recaps stored for 90 days; LLMs "do not retain information once the request has been processed"; AI content saved in conversations/canvases follows the organisation's retention settings.
Business+Summaries and search answers ephemeral (not stored); recaps stored for 90 days; LLMs "do not retain information once the request has been processed"; AI content saved in conversations/canvases follows the organisation's retention settings.
Enterprise+Summaries and search answers ephemeral (not stored); recaps stored for 90 days; LLMs "do not retain information once the request has been processed"; AI content saved in conversations/canvases follows the organisation's retention settings.

Price

differs by tool: Microsoft 365 Copilot
0Microsoft Copilot (consumer, free, personal Microsoft account)
several tiersCopilot in Microsoft 365 Personal / Family (consumer), Microsoft 365 Copilot Business (Add-on)
19.99 USD/mo… (further prices in the details)Microsoft 365 Premium (consumer)
no additional cost with eligible…Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on), Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on)
30 USD/user/mo… (further prices in the details)Microsoft 365 Copilot (premium licence, organisations, add-on); Slack AI
0 EURFree
8.25 EUR/user/mo… (further prices in the details)Pro
18 EUR/user/mo… (further prices in the details)Business+
45 EUR/user/moEnterprise+; Microsoft 365 Copilot
Microsoft Copilot (consumer, free, personal Microsoft account)
0 (free use; consumer pricing page not retrieved)
Copilot in Microsoft 365 Personal / Family (consumer)
Microsoft 365 Personal: USD 9.99/month or USD 99.99/year; Microsoft 365 Family: USD 12.99/month or USD 129.99/year (US comparison page, q20). Germany (q28, as of 2026-10-18): Microsoft 365 Single EUR 10.00/month or EUR 99.00/year, Microsoft 365 Family EUR 13.00/month or EUR 129.00/year; no indication whether VAT is included.
Microsoft 365 Premium (consumer)
USD 19.99/month or USD 199.99/year (US comparison page, q20). Germany (q28, as of 2026-10-18): EUR 22.00/month or EUR 219.00/year; no indication whether VAT is included.
Microsoft 365 Copilot Business (Add-on)
Add-on: USD 18 per user/month with annual payment (promotional price, "Originally starting from $21.00 now starting from $18.00"), USD 25.20 monthly; qualifying plan required. Bundled: Business Standard with Copilot USD 23.50 (annual) / USD 28.20 (monthly); Business Premium with Copilot USD 32.00 / USD 38.40 (q12). Germany (q29, as of 2026-10-18, "prices plus VAT" (translated)): add-on Microsoft 365 Copilot Business EUR 15.60 per user/month with annual billing ("Originally starting from 18,20 € now starting from 15,60 €"), EUR 21.84 with a monthly subscription; bundles with Business Standard or Business Premium EUR 20.36 or EUR 27.73 (annual) and EUR 24.43 or EUR 33.28 (monthly). The page offers the filters "plans with Teams" and "plans without Teams" (translated labels); which filter the bundle prices in the page text belong to cannot be determined from the retrieved text
Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on)
no additional cost with eligible Microsoft 365 plans ("Microsoft Copilot Chat is available at no additional cost for all Microsoft Entra account users with an eligible Microsoft 365 subscription.", q13); eligible plans include Microsoft 365 Business Premium, Business Standard and Business Basic (q24). Cost of the base plan not recorded.
Microsoft 365 Copilot (premium licence, organisations, add-on)
USD 30 per user/month with annual payment, USD 31.50 with monthly payment; qualifying Microsoft 365 plan required separately (q13). Germany (q30, as of 2026-10-18): EUR 26.00 per user/month with annual billing or EUR 27.30 with monthly payment (annual subscription), "prices plus VAT" (translated)
Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on)
no additional cost with eligible Microsoft 365 plans ("Microsoft Copilot Chat is available at no additional cost for all Microsoft Entra account users with an eligible Microsoft 365 subscription.", q13); eligible plans include Microsoft 365 E7, E5, E3, F3, F1, G5, G3, A5, A3, A1 as well as Office 365 E5, E3, E1 Plus, E1, F3, G and A plans (q24). Cost of the base plan not recorded.
Slack AI
Free
EUR 0 ("free forever", as of 2026-10-14)
Pro
EUR 8.25 per user/month with monthly payment or EUR 6.75 with annual payment (as of 2026-10-14, pricing page additionally names a 50 % discount for 3 months)
Business+
EUR 18 per user/month with monthly payment or EUR 15 with annual payment (as of 2026-10-14)
Enterprise+
EUR 45 per user/month with annual payment (as of 2026-10-14; contact sales)
differs by tool: Microsoft 365 Copilotyesall 7 plans; Slack AI
limitedFree
yesPro, Business+, Enterprise+; Microsoft 365 Copilot
Microsoft Copilot (consumer, free, personal Microsoft account)
yes
Copilot in Microsoft 365 Personal / Family (consumer)
yes (Copilot in Microsoft 365 apps for subscribers)
Microsoft 365 Premium (consumer)
yes (according to the comparison page, Premium includes "Everything in Microsoft 365 Family, plus" further Copilot features, q20; q22 names Premium as a plan "for home" with Copilot in Microsoft 365 apps)
Microsoft 365 Copilot Business (Add-on)
yes (Copilot add-on for qualifying Business plans)
Copilot Chat with Entra account in Microsoft 365 Business Basic / Standard / Premium (without add-on)
yes (chat with web data; work data only via upload/selection; basic features in Word/Excel/PowerPoint/OneNote without Priority Access, q6)
Microsoft 365 Copilot (premium licence, organisations, add-on)
yes (chat with web and work data via Microsoft Graph and Work IQ, Copilot in Word/Excel/PowerPoint/Outlook/Teams, Priority Access, agents)
Copilot Chat with Entra account in Microsoft 365 / Office 365 E, F, G and A plans (without add-on)
yes (chat with web data; work data only via upload/selection; basic features in Word/Excel/PowerPoint/OneNote without Priority Access, q6)
Slack AI
Free
limited (pricing page 2026-10-18: all AI features greyed out in the Free column and not included for Free in the comparison table; help article table without a Free column, footnote: "Slackbot may be available to preview in a limited capacity for workspaces on the free and Pro plans.")
Pro
yes (limited: summaries, huddle notes, automatic search filters; Slackbot only as a limited preview/trial)
Business+
yes (including search answers, recaps, file summaries, translations, workflow automation, canvas generation, Slackbot)
Enterprise+
yes (all AI features incl. Enterprise Search)

Evidence

: Microsoft 365 Copilot27 sources; Slack AI10 sources; Microsoft 365 Copilot
Data, Privacy, and Security for Microsoft Copilot (Microsoft Learn)Docs, retrieved 18 Oct 2026
Enterprise data protection in Microsoft Copilot and Microsoft Copilot Chat (Microsoft Learn)Docs, retrieved 18 Oct 2026
Anthropic models in Microsoft Online Services (Microsoft Learn, as of 2026-09-18)Docs, retrieved 18 Oct 2026
Flex routing (EU and EFTA) (Microsoft Learn)Docs, retrieved 18 Oct 2026
Copilot in Microsoft 365 apps with Anthropic models (Microsoft Learn)Docs, retrieved 14 Oct 2026
Microsoft Copilot overview (licence tiers, EUDB, EDP; Microsoft Learn)Docs, retrieved 18 Oct 2026
Allow external language models for generative responses (Power Platform, Microsoft Learn, as of 2026-10-12)Docs, retrieved 14 Oct 2026
OpenAI as a subprocessor in Microsoft Online Services (Microsoft Learn)Docs, retrieved 14 Oct 2026
SpaceXAI as a subprocessor in Microsoft Online Services (Microsoft Learn)Docs, retrieved 14 Oct 2026
Data, privacy, and security for web search in Microsoft Copilot and Microsoft Copilot Chat (Microsoft Learn)Docs, retrieved 14 Oct 2026
What is the EU Data Boundary? (Microsoft Learn)Docs, retrieved 14 Oct 2026
Microsoft Copilot Plans and Pricing (Microsoft)Pricing page, retrieved 18 Oct 2026
Microsoft 365 Copilot for Enterprise (Microsoft)Pricing page, retrieved 14 Oct 2026
Privacy FAQ for Microsoft Copilot (Microsoft Support, consumer)Docs, retrieved 14 Oct 2026
Microsoft Copilot privacy controls (Microsoft Support, consumer)Docs, retrieved 14 Oct 2026
Privacy and protections (Microsoft Copilot Chat, Microsoft Learn)Docs, retrieved 14 Oct 2026
Microsoft Products and Services Data Protection Addendum (DPA), version of 2026-05-22 (Word download, evaluated)DPA, retrieved 18 Oct 2026
Microsoft Privacy Statement (Last Updated: September 2026)Privacy notice, retrieved 18 Oct 2026
Compare all Microsoft 365 plans (consumer, US)Pricing page, retrieved 14 Oct 2026
Copilot in Microsoft 365 apps for home: your data and privacy (Microsoft Support)Privacy notice, retrieved 14 Oct 2026
Microsoft Copilot for individuals: your data, privacy, and responsible AI (Microsoft Support)Privacy notice, retrieved 18 Oct 2026
Manage Microsoft Copilot Chat (section Eligibility, as of 2026-10-12)Documentation, retrieved 14 Oct 2026
Learn about retention for Copilot and AI apps (Microsoft Learn, as of 2026-06-25)Documentation, retrieved 18 Oct 2026
Microsoft Copilot for individuals: your activity history (Microsoft Support, new app version)Privacy notice, retrieved 18 Oct 2026
Compare Microsoft 365 plans (consumer, Germany)Pricing page, retrieved 18 Oct 2026
Microsoft Copilot pricing for small and medium-sized businesses (Germany)Pricing page, retrieved 18 Oct 2026
Microsoft 365 Copilot for enterprises (Germany)Pricing page, retrieved 18 Oct 2026
All details on the tool page
Slack AI
Security for AI features in SlackDocumentation, retrieved 18 Oct 2026
Guide to AI features in SlackDocumentation, retrieved 18 Oct 2026
Slack PricingPricing page, retrieved 18 Oct 2026
Updates to feature availability and pricing for Slack plansDocumentation, retrieved 14 Oct 2026
Slack Privacy Policy (Effective 2023-07-05)Privacy notice, retrieved 18 Oct 2026
Salesforce Infrastructure and Sub-processors (Published 2026-10-02), section SlackSub-processor list, retrieved 14 Oct 2026
Slack Help Center: Data residency for SlackHelp article, retrieved 18 Oct 2026
Salesforce Data Processing Addendum (Revision August 2026), linked from the Slack DPA pageDPA, retrieved 18 Oct 2026
Slack artificial intelligence, machine learning, and data usageDocumentation, retrieved 18 Oct 2026
Slack AI PrinciplesDocumentation, retrieved 18 Oct 2026
All details on the tool page

not documentedmeans: not publicly documented, not verifiable in any provider source. It does not mean “no”.

No guarantee of accuracy, not legal advice. Each entry is valid as of the date shown. Open points are listed on the detail pages.

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Individual pages: Microsoft 365 Copilot, Slack AI. All tools in the category: Office & collaboration.