ChatGPT vs. Perplexity: data protection per plan

not publicly documented (the Enterprise privacy page mentions a DPA only for ChatGPT Business, Enterprise and API; Edu via Student Data Privacy Agreement)

not publicly documented (the Enterprise privacy page mentions a DPA only for ChatGPT Business, Enterprise and API; the Help Center article on Go refers on data protection only to the Privacy Policy, Terms of Use and Data Controls FAQ)

not publicly documented (the Enterprise privacy page mentions a DPA only for ChatGPT Business, Enterprise and API; the Help Center article on Plus refers on data protection only to the Privacy Policy, Terms of Use and Data Controls FAQ)

not publicly documented (the Enterprise privacy page mentions a DPA only for ChatGPT Business, Enterprise and API; Edu via Student Data Privacy Agreement)

yes: Enterprise privacy page: "we are able to execute a Data Processing Addendum (DPA) with customers for their use of ChatGPT Business, ChatGPT Enterprise, and the API"; concluded via the DPA form. OpenAI DPA (Effective 2026-01-01) published.

not publicly documented whether a DPA under Art. 28 GDPR can be concluded: Enterprise privacy page: "For ChatGPT Edu and for Teachers, we process your data pursuant to our Student Data Privacy Agreement." It covers ChatGPT For Teachers via the Education Terms and names only US law as "Privacy Laws" (FERPA, PPRA, supplemental state laws); the GDPR and Art. 28 are not mentioned. The offering is aimed only at US schools and school districts.

yes: Enterprise privacy page: "we are able to execute a Data Processing Addendum (DPA) with customers for their use of ChatGPT Business, ChatGPT Enterprise, and the API"; concluded via the DPA form. OpenAI DPA (Effective 2026-01-01) published.

not publicly documented whether a DPA under Art. 28 GDPR can be concluded: Enterprise privacy page: "For ChatGPT Edu and for Teachers, we process your data pursuant to our Student Data Privacy Agreement." The Student Data Privacy Agreement is a contract between OpenAI, LLC and the customer; in it, OpenAI is considered a FERPA "School Official", and "Privacy Laws" covers only US federal and state law (FERPA, PPRA, supplemental state laws); the GDPR and Art. 28 are not mentioned. The Enterprise privacy page mentions the OpenAI DPA only for Business, Enterprise and API.

yes: Enterprise privacy page: "we are able to execute a Data Processing Addendum (DPA) with customers for their use of ChatGPT Business, ChatGPT Enterprise, and the API"; concluded via the DPA form. OpenAI DPA (Effective 2026-01-01) published.

no (according to its wording, the DPA applies only to business customers whose contract refers to it; consumer use under the Privacy Notice)

no (according to its wording, the DPA applies only to business customers whose contract refers to it; consumer use under the Privacy Notice)

no (according to its wording, the DPA applies only to business customers whose contract refers to it; consumer use under the Privacy Notice)

yes (DPA forms part of the Enterprise Terms by reference, section 5.1)

yes (DPA forms part of the Enterprise Terms by reference, section 5.1)

Help Center (section Services for individuals): "When you use our services for individuals (Free, Plus, Pro), we may use your content to train our models. You can choose whether your conversations help improve our models. To opt out, turn off Improve the model for everyone under Settings > Data controls in ChatGPT, or select Do not train on my content in our Privacy Portal." Temporary chats: "are not used to improve OpenAI models while they remain temporary". Feedback exception: "If you choose to provide feedback, the entire conversation associated with that feedback may be used to train our models."

Help Center (section Services for individuals): "When you use our services for individuals (Free, Plus, Pro), we may use your content to train our models. You can choose whether your conversations help improve our models. To opt out, turn off Improve the model for everyone under Settings > Data controls in ChatGPT, or select Do not train on my content in our Privacy Portal." Temporary chats: "are not used to improve OpenAI models while they remain temporary". Feedback exception: "If you choose to provide feedback, the entire conversation associated with that feedback may be used to train our models." Help Center article on Go: "OpenAI may use conversations to improve model performance and safety. You can opt out of having your data used for training at any time."

Help Center (section Services for individuals): "When you use our services for individuals (Free, Plus, Pro), we may use your content to train our models. You can choose whether your conversations help improve our models. To opt out, turn off Improve the model for everyone under Settings > Data controls in ChatGPT, or select Do not train on my content in our Privacy Portal." Temporary chats: "are not used to improve OpenAI models while they remain temporary". Feedback exception: "If you choose to provide feedback, the entire conversation associated with that feedback may be used to train our models."

Help Center (section Services for individuals): "When you use our services for individuals (Free, Plus, Pro), we may use your content to train our models. You can choose whether your conversations help improve our models. To opt out, turn off Improve the model for everyone under Settings > Data controls in ChatGPT, or select Do not train on my content in our Privacy Portal." Temporary chats: "are not used to improve OpenAI models while they remain temporary". Feedback exception: "If you choose to provide feedback, the entire conversation associated with that feedback may be used to train our models."

Help Center: "By default, we don't use inputs or outputs from ChatGPT Business, ChatGPT Enterprise, ChatGPT Edu, or our API to improve our models." Enterprise privacy page: "We do not train our models on your data by default". Help Center (Business FAQ): "ChatGPT Business is governed by OpenAI Business Terms and the Enterprise Privacy commitments, and OpenAI does not train on your workspace data."

Help Center: "As with other Business customers, information shared with ChatGPT for Teachers is not used to train our models by default." In addition: "we may use automated systems to classify content for safety and quality."

Help Center: "By default, we don't use inputs or outputs from ChatGPT Business, ChatGPT Enterprise, ChatGPT Edu, or our API to improve our models." Enterprise privacy page: "We do not train our models on your data by default".

Help Center: "By default, we don't use inputs or outputs from ChatGPT Business, ChatGPT Enterprise, ChatGPT Edu, or our API to improve our models." Enterprise privacy page: "We do not train our models on your data by default".

Help Center: "By default, we don't use inputs or outputs from ChatGPT Business, ChatGPT Enterprise, ChatGPT Edu, or our API to improve our models." Enterprise privacy page: "We do not train our models on your data by default". API documentation: "data sent to the OpenAI API is not used to train or improve OpenAI models (unless you explicitly opt in to share data with us)". API organisation owners can enable data sharing (Help Center); only then can members share feedback and the current Playground chat.

"AI data retention" enabled by default; opt-out in Account Settings > Preferences. "Opt-outs only apply to data collected after the opt-out date." Training data already collected cannot be deleted (Help Center). According to the Help Center, this applies expressly to Free, Pro and Max: "For Free, Perplexity Pro and Perplexity Max users, AI Data Retention is enabled by default." (q1)

"AI data retention" enabled by default; opt-out in Account Settings > Preferences. "Opt-outs only apply to data collected after the opt-out date." Training data already collected cannot be deleted (Help Center). According to the Help Center, this applies expressly to Free, Pro and Max: "For Free, Perplexity Pro and Perplexity Max users, AI Data Retention is enabled by default." (q1)

"AI data retention" enabled by default; opt-out in Account Settings > Preferences. "Opt-outs only apply to data collected after the opt-out date." Training data already collected cannot be deleted (Help Center). According to the Help Center, this applies expressly to Free, Pro and Max: "For Free, Perplexity Pro and Perplexity Max users, AI Data Retention is enabled by default." (q1)

Enterprise Terms section 1.3.3: Perplexity does not use Customer Content for training, retraining or fine-tuning and does not authorise third parties to do so either; DPA: "Personal Data will not be used for training of Perplexity's large language models." Help Center: zero data retention and zero training agreements with AI providers (OpenAI, Anthropic and others).

As Enterprise Pro (Enterprise Terms section 1.3.3, DPA).

Privacy policy (Europe, 2026-08-24), section 10: "OpenAI processes your Personal Data on servers located outside of the EEA, Switzerland and the UK ... This includes processing and storing your Personal Data in our facilities and servers in the United States or in countries or territories where our affiliates and partners or our vendors and service providers are located." Pricing page: row "Data residency in US, EU, UK, JP, CA, KR, SG, IN, AU, UAE" = No for Free, Go, Plus, Pro.

Privacy policy (Europe, 2026-08-24), section 10: "OpenAI processes your Personal Data on servers located outside of the EEA, Switzerland and the UK ... This includes processing and storing your Personal Data in our facilities and servers in the United States or in countries or territories where our affiliates and partners or our vendors and service providers are located." Pricing page: row "Data residency in US, EU, UK, JP, CA, KR, SG, IN, AU, UAE" = No for Free, Go, Plus, Pro.

Privacy policy (Europe, 2026-08-24), section 10: "OpenAI processes your Personal Data on servers located outside of the EEA, Switzerland and the UK ... This includes processing and storing your Personal Data in our facilities and servers in the United States or in countries or territories where our affiliates and partners or our vendors and service providers are located." Pricing page: row "Data residency in US, EU, UK, JP, CA, KR, SG, IN, AU, UAE" = No for Free, Go, Plus, Pro.

Privacy policy (Europe, 2026-08-24), section 10: "OpenAI processes your Personal Data on servers located outside of the EEA, Switzerland and the UK ... This includes processing and storing your Personal Data in our facilities and servers in the United States or in countries or territories where our affiliates and partners or our vendors and service providers are located." Pricing page: row "Data residency in US, EU, UK, JP, CA, KR, SG, IN, AU, UAE" = No for Free, Go, Plus, Pro.

not publicly documented for Business: the residency page in the Help Center (as of 2026-10-18) names as eligible "Eligible API customers and new ChatGPT Enterprise/Edu customers" (q5), the business data page "Eligible ChatGPT Enterprise, ChatGPT Edu, ChatGPT for Healthcare, and API platform customers" (q11); ChatGPT Business is not named in either. The pricing page lists data residency in ten regions only for the Enterprise plan. The sub-processor list (as of 2026-10-14) names processing locations for Business in the USA and other countries (including EU Member States), without a choice.

not publicly documented: the Help Center refers to sales for data residency and EKM ("You require advanced enterprise features (for example, data residency or EKM)"); the residency page does not name Teachers.

Help Center Data residency (as of 2026-10-18): "Eligible API customers and new ChatGPT Enterprise/Edu customers can choose to have in-scope customer content stored at rest in supported countries." Regions: Australia, Canada, Europe (EEA + Switzerland), India, Japan, Singapore, South Korea, UAE, UK, USA. Inference residency (GPU execution in the region) only for Europe (EEA + Switzerland), USA and UAE, and only with data residency activated in the same region. In scope: Memory, Code Interpreter/Data Analysis artefacts, conversations (text, image, voice), Custom GPTs, files, image generation inputs/outputs, incl. backups/replicas; new features only if listed. Outside the region, data from external integrations (Apps & MCP, Web Search), transient processing steps, workspace metadata and name, billing information and logins, among others, may be stored ("Certain categories of data may be stored outside the chosen data region"); CPU processing such as authentication, routing and analytics may run outside the region. Applies to newly provisioned workspaces; eligibility via sales; at no additional cost for Enterprise and Education.

Help Center Data residency (as of 2026-10-18): "new ChatGPT Enterprise/Edu customers can choose to have in-scope customer content stored at rest in supported countries"; Europe (EEA + Switzerland) is a supported region; inference residency for Enterprise/Edu with data residency activated (Europe, USA, UAE). Exceptions as for Enterprise (including external integrations, workspace metadata, billing information, logins). Eligibility via sales; at no additional cost for Education.

Help Center Data residency: "Eligible API customers ... can choose to have in-scope customer content stored at rest in supported countries". API documentation (Data controls, as of 2026-10-18): data residency is a project setting; "Contact our sales team to see if you're eligible for using data residency controls." Regions with their own endpoints: USA, Europe (EEA + Switzerland, eu.api.openai.com), Australia, Canada, Japan, India, Singapore, South Korea, UK, UAE; inference in the region only for the USA, Europe and the UAE, the other regions storage only; all regions except the USA require Modified Abuse Monitoring or Zero Data Retention. System data (account data, metadata, usage data without customer content) may be processed and stored outside the region. For models released from 2026-03-05, a 10% uplift applies on residency endpoints.

not publicly documented (Trust Center trust.perplexity.ai JS-rendered; Help Center pages on hosting 403)

not publicly documented (Trust Center trust.perplexity.ai JS-rendered; Help Center pages on hosting 403)

not publicly documented (Trust Center trust.perplexity.ai JS-rendered; Help Center pages on hosting 403)

not publicly documented (Trust Center trust.perplexity.ai JS-rendered; Help Center pages on hosting 403)

not publicly documented (Trust Center trust.perplexity.ai JS-rendered; Help Center pages on hosting 403)

• not publicly documented for consumer plans (the sub-processor list, as of 2026-10-14, names API, ChatGPT Enterprise, Edu and Business as its scope; for Plus and Pro it states only for ChatGPT Sites that the listed sub-processors may provide web hosting, infrastructure, moderation and support; reference: https://openai.com/policies/sub-processor-list/)

• not publicly documented for consumer plans (the sub-processor list, as of 2026-10-14, names API, ChatGPT Enterprise, Edu and Business as its scope; for Plus and Pro it states only for ChatGPT Sites that the listed sub-processors may provide web hosting, infrastructure, moderation and support; reference: https://openai.com/policies/sub-processor-list/)

• not publicly documented for consumer plans (the sub-processor list, as of 2026-10-14, names API, ChatGPT Enterprise, Edu and Business as its scope; for Plus and Pro it states only for ChatGPT Sites that the listed sub-processors may provide web hosting, infrastructure, moderation and support; reference: https://openai.com/policies/sub-processor-list/)

• not publicly documented for consumer plans (the sub-processor list, as of 2026-10-14, names API, ChatGPT Enterprise, Edu and Business as its scope; for Plus and Pro it states only for ChatGPT Sites that the listed sub-processors may provide web hosting, infrastructure, moderation and support; reference: https://openai.com/policies/sub-processor-list/)

• According to the list (as of 2026-10-14, applies to API, ChatGPT Enterprise, Edu, Business): OpenAI companies OpenAI, OpCo, LLC and OAI International, Inc. (USA), OpenAI Ireland Ltd. (Ireland), OpenAI UK Ltd., OpenAI Japan Ltd. (standard contractual clauses between group companies)
• Cloudflare, Ltd. (CDN; data centre closest to the end user; for requests to us.api.openai.com or eu.api.openai.com, TLS termination in the selected region via Cloudflare Regional Services; also web hosting for ChatGPT Sites in the USA for Enterprise, Edu, Business)
• Microsoft Corporation (cloud infrastructure; including Belgium, Denmark, Germany, France, Ireland, Italy, the Netherlands, Norway, Poland, Sweden, Switzerland, Spain, the UK, the USA and others)
• CoreWeave, Inc. (cloud infrastructure; Norway, Spain, Sweden, UK, USA)
• Oracle Cloud Infrastructure (cloud infrastructure; Brazil, Japan, Malaysia, the Netherlands, the UK, the USA)
• Google Cloud Platform (cloud infrastructure; Finland, Japan, the Netherlands, Norway, Singapore, the UK, the USA)
• Amazon Web Services, Inc. (cloud infrastructure; USA)
• Cerebras (cloud infrastructure; USA, Canada)
• Snowflake, Inc. (data warehousing; USA; for the API except with Zero Data Retention)
• TaskUs, LLC (customer support; for API and Business moderation of content; for Enterprise, Edu and Business moderation of GPTs; Philippines)
• Salesforce (customer support; including Germany, France, Ireland, Italy, the Netherlands, Sweden, Switzerland, the UK, the USA and others)
• Pylon Labs (customer support; USA; API, Enterprise, Edu only; at the customer's choice, premium support only)
• Accenture International Limited (customer support; for API/Business also moderation of content; USA, Canada, Philippines)
• Fivetran, Inc. (ETL; USA)
• Cinder Technologies, Inc. (platform for content or GPT moderation; USA; for API except where Zero Data Retention is used)
• WorkOS, Inc. (cross-domain identity management; USA; at the customer's choice; Enterprise, Edu, Business)
• Merge API, Inc. (infrastructure management, only with activated Connectors; including France, Ireland, Sweden, the UK, the USA and others; at the customer's choice)

• not publicly documented (the sub-processor list, as of 2026-10-14, does not name ChatGPT for Teachers; according to the Help Center, authorised employees and "specialized third-party contractors" have access to stored conversations to review for abuse)

• According to the list (as of 2026-10-14, applies to API, ChatGPT Enterprise, Edu, Business): OpenAI companies OpenAI, OpCo, LLC and OAI International, Inc. (USA), OpenAI Ireland Ltd. (Ireland), OpenAI UK Ltd., OpenAI Japan Ltd. (standard contractual clauses between group companies)
• Cloudflare, Ltd. (CDN; data centre closest to the end user; for requests to us.api.openai.com or eu.api.openai.com, TLS termination in the selected region via Cloudflare Regional Services; also web hosting for ChatGPT Sites in the USA for Enterprise, Edu, Business)
• Microsoft Corporation (cloud infrastructure; including Belgium, Denmark, Germany, France, Ireland, Italy, the Netherlands, Norway, Poland, Sweden, Switzerland, Spain, the UK, the USA and others)
• CoreWeave, Inc. (cloud infrastructure; Norway, Spain, Sweden, UK, USA)
• Oracle Cloud Infrastructure (cloud infrastructure; Brazil, Japan, Malaysia, the Netherlands, the UK, the USA)
• Google Cloud Platform (cloud infrastructure; Finland, Japan, the Netherlands, Norway, Singapore, the UK, the USA)
• Amazon Web Services, Inc. (cloud infrastructure; USA)
• Cerebras (cloud infrastructure; USA, Canada)
• Snowflake, Inc. (data warehousing; USA; for the API except with Zero Data Retention)
• TaskUs, LLC (customer support; for API and Business moderation of content; for Enterprise, Edu and Business moderation of GPTs; Philippines)
• Salesforce (customer support; including Germany, France, Ireland, Italy, the Netherlands, Sweden, Switzerland, the UK, the USA and others)
• Pylon Labs (customer support; USA; API, Enterprise, Edu only; at the customer's choice, premium support only)
• Accenture International Limited (customer support; for API/Business also moderation of content; USA, Canada, Philippines)
• Fivetran, Inc. (ETL; USA)
• Cinder Technologies, Inc. (platform for content or GPT moderation; USA; for API except where Zero Data Retention is used)
• WorkOS, Inc. (cross-domain identity management; USA; at the customer's choice; Enterprise, Edu, Business)
• Merge API, Inc. (infrastructure management, only with activated Connectors; including France, Ireland, Sweden, the UK, the USA and others; at the customer's choice)

• According to the list (as of 2026-10-14, applies to API, ChatGPT Enterprise, Edu, Business): OpenAI companies OpenAI, OpCo, LLC and OAI International, Inc. (USA), OpenAI Ireland Ltd. (Ireland), OpenAI UK Ltd., OpenAI Japan Ltd. (standard contractual clauses between group companies)
• Cloudflare, Ltd. (CDN; data centre closest to the end user; for requests to us.api.openai.com or eu.api.openai.com, TLS termination in the selected region via Cloudflare Regional Services; also web hosting for ChatGPT Sites in the USA for Enterprise, Edu, Business)
• Microsoft Corporation (cloud infrastructure; including Belgium, Denmark, Germany, France, Ireland, Italy, the Netherlands, Norway, Poland, Sweden, Switzerland, Spain, the UK, the USA and others)
• CoreWeave, Inc. (cloud infrastructure; Norway, Spain, Sweden, UK, USA)
• Oracle Cloud Infrastructure (cloud infrastructure; Brazil, Japan, Malaysia, the Netherlands, the UK, the USA)
• Google Cloud Platform (cloud infrastructure; Finland, Japan, the Netherlands, Norway, Singapore, the UK, the USA)
• Amazon Web Services, Inc. (cloud infrastructure; USA)
• Cerebras (cloud infrastructure; USA, Canada)
• Snowflake, Inc. (data warehousing; USA; for the API except with Zero Data Retention)
• TaskUs, LLC (customer support; for API and Business moderation of content; for Enterprise, Edu and Business moderation of GPTs; Philippines)
• Salesforce (customer support; including Germany, France, Ireland, Italy, the Netherlands, Sweden, Switzerland, the UK, the USA and others)
• Pylon Labs (customer support; USA; API, Enterprise, Edu only; at the customer's choice, premium support only)
• Accenture International Limited (customer support; for API/Business also moderation of content; USA, Canada, Philippines)
• Fivetran, Inc. (ETL; USA)
• Cinder Technologies, Inc. (platform for content or GPT moderation; USA; for API except where Zero Data Retention is used)
• WorkOS, Inc. (cross-domain identity management; USA; at the customer's choice; Enterprise, Edu, Business)
• Merge API, Inc. (infrastructure management, only with activated Connectors; including France, Ireland, Sweden, the UK, the USA and others; at the customer's choice)

• According to the list (as of 2026-10-14, applies to API, ChatGPT Enterprise, Edu, Business): OpenAI companies OpenAI, OpCo, LLC and OAI International, Inc. (USA), OpenAI Ireland Ltd. (Ireland), OpenAI UK Ltd., OpenAI Japan Ltd. (standard contractual clauses between group companies)
• Cloudflare, Ltd. (CDN; data centre closest to the end user; for requests to us.api.openai.com or eu.api.openai.com, TLS termination in the selected region via Cloudflare Regional Services; also web hosting for ChatGPT Sites in the USA for Enterprise, Edu, Business)
• Microsoft Corporation (cloud infrastructure; including Belgium, Denmark, Germany, France, Ireland, Italy, the Netherlands, Norway, Poland, Sweden, Switzerland, Spain, the UK, the USA and others)
• CoreWeave, Inc. (cloud infrastructure; Norway, Spain, Sweden, UK, USA)
• Oracle Cloud Infrastructure (cloud infrastructure; Brazil, Japan, Malaysia, the Netherlands, the UK, the USA)
• Google Cloud Platform (cloud infrastructure; Finland, Japan, the Netherlands, Norway, Singapore, the UK, the USA)
• Amazon Web Services, Inc. (cloud infrastructure; USA)
• Cerebras (cloud infrastructure; USA, Canada)
• Snowflake, Inc. (data warehousing; USA; for the API except with Zero Data Retention)
• TaskUs, LLC (customer support; for API and Business moderation of content; for Enterprise, Edu and Business moderation of GPTs; Philippines)
• Salesforce (customer support; including Germany, France, Ireland, Italy, the Netherlands, Sweden, Switzerland, the UK, the USA and others)
• Pylon Labs (customer support; USA; API, Enterprise, Edu only; at the customer's choice, premium support only)
• Accenture International Limited (customer support; for API/Business also moderation of content; USA, Canada, Philippines)
• Fivetran, Inc. (ETL; USA)
• Cinder Technologies, Inc. (platform for content or GPT moderation; USA; for API except where Zero Data Retention is used)
• WorkOS, Inc. (cross-domain identity management; USA; at the customer's choice; Enterprise, Edu, Business)
• Merge API, Inc. (infrastructure management, only with activated Connectors; including France, Ireland, Sweden, the UK, the USA and others; at the customer's choice)

• Model providers according to "Third-Party Models" (as of 2025-11-25): OpenAI (incl. Microsoft Azure OpenAI Service), Anthropic (incl. Google Vertex AI and AWS Bedrock), Meta (basis for Sonar, operated by Perplexity itself), xAI, Google (Gemini, Veo)
• full sub-processor list only in the Trust Center (trust.perplexity.ai, a JavaScript application; according to the Help Center the "sub-processor list" is also there, q16), not retrievable

• Model providers according to "Third-Party Models" (as of 2025-11-25): OpenAI (incl. Microsoft Azure OpenAI Service), Anthropic (incl. Google Vertex AI and AWS Bedrock), Meta (basis for Sonar, operated by Perplexity itself), xAI, Google (Gemini, Veo)
• full sub-processor list only in the Trust Center (trust.perplexity.ai, a JavaScript application; according to the Help Center the "sub-processor list" is also there, q16), not retrievable

• Model providers according to "Third-Party Models" (as of 2025-11-25): OpenAI (incl. Microsoft Azure OpenAI Service), Anthropic (incl. Google Vertex AI and AWS Bedrock), Meta (basis for Sonar, operated by Perplexity itself), xAI, Google (Gemini, Veo)
• full sub-processor list only in the Trust Center (trust.perplexity.ai, a JavaScript application; according to the Help Center the "sub-processor list" is also there, q16), not retrievable

• Model providers according to "Third-Party Models" (as of 2025-11-25): OpenAI (incl. Microsoft Azure OpenAI Service), Anthropic (incl. Google Vertex AI and AWS Bedrock), Meta (basis for Sonar, operated by Perplexity itself), xAI, Google (Gemini, Veo)
• full sub-processor list only in the Trust Center (trust.perplexity.ai, a JavaScript application; according to the Help Center the "sub-processor list" is also there, q16), not retrievable

• Model providers according to "Third-Party Models" (as of 2025-11-25): OpenAI (incl. Microsoft Azure OpenAI Service), Anthropic (incl. Google Vertex AI and AWS Bedrock), Meta (basis for Sonar, operated by Perplexity itself), xAI, Google (Gemini, Veo)
• full sub-processor list only in the Trust Center (trust.perplexity.ai, a JavaScript application; according to the Help Center the "sub-processor list" is also there, q16), not retrievable

€0 per month (pricing page, de-DE rendered in the browser; according to the FAQ, Free is available to everyone) (as of 2026-10-18)

€8 per month (pricing page, de-DE rendered in the browser; no statement whether incl. VAT). Help Center: purchases in USD, local-currency billing only in some countries; monthly billing only, no annual plan; no USD amount is stated there (as of 2026-10-18)

€23 per month (pricing page, de-DE rendered in the browser; no statement whether incl. VAT). Help Center: "$20/month (billed monthly)"; no annual plan (as of 2026-10-18)

Pro 100: USD 100, Pro 200: USD 200, Pro 500: USD 500 per month (Help Center; Ultrafast models only in Pro 500; monthly billing only, no annual plan). Pricing page, de-DE rendered in the browser: from €103 per month; euro amounts for Pro 200 and Pro 500 are not shown there (as of 2026-10-18)

Standard seat €21 per user per month billed annually, €26 billed monthly; Premium seat (5x usage, no five-hour limit) €105 or €130 respectively (pricing page, de-DE rendered in the browser). Help Center: Standard USD 20 annually or USD 25 monthly, Premium USD 100 or USD 125 per user per month; "Prices listed here are in USD and may vary by country and currency". At least 2, at most 200 paid seats (as of 2026-10-18)

free for verified US K–12 teachers until June 2028 (Help Center, as of 2026-10-18); pricing possible thereafter with advance notice. The FAQ on the pricing page (de-DE) states June 2027 instead.

Price on request (pricing page: custom pricing via sales; annual plan; billing by credits or by tokens available) (as of 2026-10-18)

not publicly documented (the pricing page describes ChatGPT Edu as a low-cost plan for universities, without an amount; contact via sales) (as of 2026-10-18)

Price not publicly documented (usage-based API prices not evaluated from a primary source)

USD 0/month (as of 2026-10-14)

USD 17/month with annual payment (pricing page, as of 2026-10-18); a monthly price is shown neither on the pricing page nor in the Help Center article "What is Perplexity Pro?" (check on 2026-10-07: USD 20/month)

USD 167/month with annual payment (pricing page, as of 2026-10-18); according to the Help Center "$200/monthly or $2000/annually", annual billing only in the web app (q13)

USD 40 per seat/month or USD 400 per seat/year (Help Center, Last modified 2026-10-08, q14); pricing page, Enterprise tab: USD 34 per seat/month "when billed annually" (q3); for eligible educational institutions and non-profits USD 30 per seat/month or USD 300 per seat/year (q15). No indication whether VAT is included (as of 2026-10-18)

USD 325 per seat/month or USD 3,250 per seat/year (Help Center, Last modified 2026-10-08, q14); pricing page, Enterprise tab: USD 271 per seat/month "when billed annually" (q3). No indication whether VAT is included; additional security and governance features "Custom pricing" according to the pricing page (as of 2026-10-18)

yes (according to the pricing page: unlimited text chats with GPT-6, limited uploads, image creation, voice chats)

yes (Free plus more messages with tools, uploads, image creation, voice chats, longer Memory; according to the pricing page "This plan may include ads")

yes (Go plus advanced GPT-6 reasoning models, more messages/uploads, Deep Research, Projects, Codex, ChatGPT Work)

yes (Plus plus three usage tiers, Pro reasoning with GPT-6 Astra, Codex/Work sessions, Dot, maximum Deep Research)

yes (Business workspace with workspace admin control of retention according to the Enterprise privacy page; feature scope not evaluated in the retrieved pricing text)

yes (according to the Help Center, a self-serve workspace for verified US K–12 teachers and school staff, not for students; including file uploads, deep research, voice mode, image generation, memory, Custom GPTs, admin features with SSO and RBAC)

yes (according to Enterprise Privacy: SAML SSO, Compliance API/audit logs, RBAC, data residency)

yes (according to the Enterprise privacy page part of the business products; feature scope not evaluated in the retrieved page text)

API (models via Platform); feature scope not the subject of this entry

yes (limited: search, basic models, limited weekly usage)

yes

yes

yes (incl. Perplexity Computer)

yes (highest model and usage tier)