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Pydantic AI AI Updates: July 10, 2026

pydantic-ai release cli chat-ui validation

1. Pydantic AI Ships v2.8.0 With to_cli() Model Params and Chat UI 2.0.0

Pydantic AI. Pydantic AI released v2.8.0, adding the ability to pass model parameters to to_cli() for agents that have no preset model. The release upgrades the bundled chat interface to version 2.0.0 targeting SDK v7, and tightens validation for Tool and Agent parameter constraints including max_retries, timeout, and concurrency limits. Additional fixes address JSON schema transformation and response handling. Source