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Pydantic AI

Python agent framework from the Pydantic team

MIT-licensed Python agent framework from the Pydantic team, with type-safe outputs and model-agnostic support. v2.0 shipped June 2026.

Best for: Type-safe Python agents in production

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86
score / 100
Pricing
Free (open source); Logfire Team $49/mo optional
Free tier
Yes: MIT library; Logfire Personal free
Open source
Yes
Last verified
2026-10-15

Score breakdown

Why this score: Clean, typed and model-agnostic, with a stable major version. Python-only.

Based on desk research of official pricing pages and docs; see methodology.

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LangChain / LangGraph open source
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M
Mastra open source
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