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v2.6.0

pydantic/pydantic-aiv2.6.0Jul 8, 2026by dsfaccini

AI Summary

This release introduces time-to-first-token tracking for streaming, adds file support to code execution tools, and updates Bedrock model profiles. It also addresses several bug fixes including Groq domain filtering and Google grounding issues, alongside dependency updates for security.

Key Highlights

  • Add `files` support to `CodeExecutionTool` for Anthropic and OpenAI
  • Record time-to-first-token for streaming model requests
  • Add Bedrock model profiles for Writer, Z.AI, and Moonshot AI
  • Fix Groq domain filters and Google grounding issues
  • Bump dependencies to address CVEs in torch and transformers

New Features

  • Record time-to-first-token for streaming model requests
  • Add `files` support to `CodeExecutionTool` for Anthropic and OpenAI
  • Add Bedrock model profiles for Writer, Z.AI, and Moonshot AI, and refresh `LatestBedrockModelNames`

Full Release Notes

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

## What's Changed
### 🚀 Features
* Record time-to-first-token for streaming model requests by @dmontagu in https://github.com/pydantic/pydantic-ai/pull/5967
* feat: Add `files` support to `CodeExecutionTool` for Anthropic and OpenAI by @HenryYYang in https://github.com/pydantic/pydantic-ai/pull/4338
* Add Bedrock model profiles for Writer, Z.AI, and Moonshot AI, and refresh `LatestBedrockModelNames` by @DouweM in https://github.com/pydantic/pydantic-ai/pull/6318
### 🐛 Bug Fixes
* Forward `WebSearchTool` domain filters to Groq `search_settings` by @Iam-Mil in https://github.com/pydantic/pydantic-ai/pull/6160
* Give a clear error for non-positive concurrency `max_running` by @VectorPeak in https://github.com/pydantic/pydantic-ai/pull/6282
* fix(evals): constrain judge_output reason to be concise and retry-safe by @anmolg1997 in https://github.com/pydantic/pydantic-ai/pull/5089
* Re-enable Prefect test suite and fix `PrefectAgent` cache-key drift by @adtyavrdhn in https://github.com/pydantic/pydantic-ai/pull/6313
* fix(google): recover Gemini 3+ File Search grounding dropped with native tool parts by @adtyavrdhn in https://github.com/pydantic/pydantic-ai/pull/6216
* fix: serialize callable thinking delta provider details by @hramezani in https://github.com/pydantic/pydantic-ai/pull/6294
* Resolve capability `for_run` once per run and preserve resolved native tools under `override(native_tools=...)` by @DouweM in https://github.com/pydantic/pydantic-ai/pull/6332
* Reject conflicting native tool IDs within a capability layer by @hramezani in https://github.com/pydantic/pydantic-ai/pull/6242
### 📦 Dependencies
* deps: bump torch floor to 2.12.1 to close CVE-2025-3000 by @hramezani in https://github.com/pydantic/pydantic-ai/pull/6309
* deps: bump transformers floor to 5.3.0 to close CVE-2026-4372 by @hramezani in https://github.com/pydantic/pydantic-ai/pull/6310
* Bump `genai-prices` to 0.0.70 by @adtyavrdhn in https://github.com/pydantic/pydantic-ai/pull/6330

## New Contributors
* @anmolg1997 made their first contribution in https://github.com/pydantic/pydantic-ai/pull/5089
* @HenryYYang made their first contribution in https://github.com/pydantic/pydantic-ai/pull/4338

**Full Changelog**: https://github.com/pydantic/pydantic-ai/compare/v2.5.1...v2.6.0