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Published : Apr 02, 2025
Apr 2025
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As the technologies to build LLM-backed applications and agents continue to evolve rapidly, frameworks for building and orchestrating such applications often struggle to keep up or find the right timeless abstractions. PydanticAI is the latest entrant in this space, aiming to simplify implementations while avoiding unnecessary complexity. Developed by the creators of the popular Pydantic, it builds on lessons learned from earlier frameworks — many of which already rely on Pydantic. Rather than trying to be a Swiss Army knife, PydanticAI offers a lightweight yet powerful approach. It integrates with all major model APIs, includes built-in structured output handling and introduces a graph-based abstraction for managing complex agentic workflows.

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