v2.32.1

pydantic/pydantic-aiv2.32.1Aug 20, 2026by dsfaccini

AI Summary

A hotfix release addressing issues with synchronous callbacks, Anthropic thinking blocks, and function model callables to prevent runtime errors.

Key Highlights

Fixed rejection of `Agent.run_sync()` from synchronous callbacks
Fixed sending Anthropic `thinking` blocks with empty signatures
Allowed any callable as a `FunctionModel` function

Full Release Notes

<!-- Release notes generated using configuration in .github/release.yml at main -->

## What's Changed
### 🐛 Bug Fixes
* Reject `Agent.run_sync()` from synchronous callbacks inside agent runs by @dsfaccini in https://github.com/pydantic/pydantic-ai/pull/7277
* Don't send Anthropic `thinking` blocks with an empty signature by @mpfaffenberger in https://github.com/pydantic/pydantic-ai/pull/7601
* Accept any callable as a `FunctionModel` `function` or `stream_function` by @dsfaccini in https://github.com/pydantic/pydantic-ai/pull/7589


**Full Changelog**: https://github.com/pydantic/pydantic-ai/compare/v2.32.0...v2.32.1