pydantic-ai
https://github.com/pydantic/pydantic-ai
Python
GenAI Agent Framework, the Pydantic way
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- Issues
- Support MCP SDK v2 and FastMCP 4 in `MCPToolset`
- Proposal: unified `Moderation` capability mapping one config onto provider-native moderation/guardrail surfaces
- Add OpenAI Responses API `reasoning.context` support (default `all_turns`) for the `gpt-5.4`/`gpt-5.5`/`gpt-5.6` families
- Fix `CombinedCapability` subclass custom `__init__` crash in `for_run`/`for_agent`
- Support Responses API `reasoning.context` for the GPT-5.6 (luna/terra/sol) models
- fix: preserve TextPart and ToolCallPart metadata across AG-UI dump/load round-trip
- Add Azure AI Voice Live via the `azure_voice_live` setting
- Proactively emit spans for framework-detected issues (cache-prefix collapse first), opt-out via `InstrumentationSettings`
- Realtime: proactively resume Gemini Live sessions on `GoAway` before the connection cap
- Support Inception Labs (Mercury) models
- Docs
- Python not yet supported