Pydantic AI Tutorial: How I Build Type-Safe AI Agents That Actually Work in Production
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The fourth time I had to debug a LangChain agent that silently returned malformed JSON and crashed a client's order processing pipeline, I decided I was done patching type errors at midnight. That was eight months ago. Since then I've built 14 production systems on Pydantic AI, and not one of them has broken in the same way. Pydantic AI is a Python agent framework built by the Pydantic team — the same people behind the library that OpenAI, Google, and Anthropic use for data validation inside th