pydantic/pydantic-ai v1.83.0

v1.83.0 (2026-04-15)

on GitHub

🤖 Pydantic AI Harness is now live with Code Mode powered by Monty!

What's Changed

🚀 Features

• feat: Add XSearchTool and FileSearch support for xAI by @colesmcintosh in #4165
• Allow injecting metadata per tool call with FastMCPToolset by @Boryotto in #4929
• feat(bedrock): add prompt cache TTL support by @imdigitalashish in #4581
• Add Anthropic automatic prompt caching support by @DenysMoskalenko in #4840
• Add 'graceful' end strategy for parallel tool calls by @awkoy in #4333
• Support Agent(output_type=str | None) for optional output by @Pavanmanikanta98 in #4042

New Contributors

• @colesmcintosh made their first contribution in #4165
• @Boryotto made their first contribution in #4929
• @imdigitalashish made their first contribution in #4581
• @awkoy made their first contribution in #4333

Full Changelog: v1.82.0...v1.83.0