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Perplexity's Responses API integration tests were pinned to `openai/gpt-5.5`, which now fails against the live Agent API for this test path. Use the stable `openai/gpt-5` Agent API model instead so scheduled coverage continues exercising the Responses API and tool-calling surface.
langchain-perplexity
Looking for the JS/TS version? Check out LangChain.js.
Quick Install
uv add langchain-perplexity
🤔 What is this?
This package contains the LangChain integration with Perplexity.
📖 Documentation
For full documentation, see the API reference. For conceptual guides, tutorials, and examples on using these classes, see the LangChain Docs.
📕 Releases & Versioning
See our Releases and Versioning policies.
💁 Contributing
As an open-source project in a rapidly developing field, we are extremely open to contributions, whether it be in the form of a new feature, improved infrastructure, or better documentation.
For detailed information on how to contribute, see the Contributing Guide.
Resources
- LangChain Academy — comprehensive, free courses on LangChain libraries and products, made by the LangChain team
- Code of Conduct — community guidelines and standards