pydantic/pydantic-ai v1.55.0

v1.55.0 (2026-02-04)

on GitHub

What's Changed

🐛 Bug Fixes

• Fix error when using OpenAIResponsesModel with "compatible" provider that returns reasoning_tokens as None instead by @alibeyram in #4151
• Fix MultiModalContent union missing discriminator causing incorrect deserialization by @jerry-reevo in #4191

Full Changelog: v1.54.0...v1.55.0