PydanticAI

A Python agent framework for building production-grade, type-safe Generative AI applications with validated, structured outputs.

PydanticAI is the Python agent framework from the Pydantic team, designed to bring FastAPI's ergonomic, type-safe development experience to Generative AI. It leverages Pydantic’s core data validation to ensure Large Language Model (LLM) outputs conform strictly to defined schemas, eliminating unpredictable text responses. The framework uses 'Agents' as the primary interface, supporting model-agnostic integration (OpenAI, Anthropic, Gemini, etc.) and managing complex components like function tools and dependency injection. This structure ensures reliable, maintainable, and scalable AI workflows for production environments.

https://ai.pydantic.dev/