Pydantic AI vs LangChain
| Pydantic AI | LangChain | |
|---|---|---|
| Summary | Agent framework from the Pydantic team focused on type-safe, structured outputs and dependency injection. | Popular framework for building LLM applications and agents with composable chains, tools, retrievers and integrations. |
| Category | Agent Frameworks | Agent Frameworks |
| Platforms | Python | Python, TypeScript |
| Pricing | Open source (MIT) | Open source (MIT) |
| Official site | https://ai.pydantic.dev | https://www.langchain.com |
Which should you choose?
Choose Pydantic AI if its approach (Python; Open source (MIT)) fits your stack. Choose LangChain if you prefer Python, TypeScript and open source (mit). Try both on a small task before you commit.