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Third-Party Models & Terms

Last updated: November 25th, 2025

Perplexity leverages advanced language models from third-party providers. This page provides important information about the identity, capabilities, and role of each third-party model we integrate into our platform. Prior to integrating any third-party model, Perplexity conducts thorough evaluation of their performance, safety measures, and alignment with our commitment to providing accurate, helpful, and responsible AI-powered search experience.

Please note: depending on your plan (e.g., free, pro), specific query and settings, the Services may use some, all or none of the below models. To the extent you do not have access to a model listed below or it is not used in connection with a particular query, that model’s terms do not apply to you or your particular query (as applicable).

Third-Party Models	Third-Party Provider	Third-Party Terms	Third-Party Policies
GPT, DALL-E and o models	OpenAI Microsoft (Azure OpenAI Service)	openai.com/policies/business-terms	openai.com/policies/usage-policies learn.microsoft.com/en-us/legal/ai-code-of-conduct
Claude models	Anthropic Google (Claude on Vertex AI) Amazon Web Services (Claude on Bedrock)	anthropic.com/legal/commercial-terms	anthropic.com/legal/aup aws.amazon.com/ai/responsible-ai/policy aws.amazon.com/aup
Sonar models*	Meta*	llama.com/llama3_1/license	llama.com/llama3/use-policy
Grok models	x-AI	x.ai/legal/terms-of-service-enterprise	x.ai/legal/acceptable-use-policy
Gemini and Veo models	Google	developers.google.com/terms ai.google.dev/gemini-api/terms	policies.google.com/terms/generative-ai/use-policy
*Sonar is based on Meta’s LlaMa 3.1 70B open-source model but is fine-tuned and operated by Perplexity.