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AI Engineer May 7, 2026

Agent Optimization with Pydantic AI: GEPA, Evals, Feedback Loops — Samuel Colvin, Pydantic

Summary

Samuel introduces Pydantic, an open-source library and company that offers various tools including a validation library, AI agent framework, and observability platform called Logfire. The discussion focuses on Jeppa, a genetic optimization library that iteratively improves strings or JSON data by finding and combining the best candidate solutions. The key practical takeaway is understanding how Jeppa can be used to autonomously optimize AI agents and prompts through an evolutionary approach to finding optimal configurations.

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