ReleaseBytes
python Pydantic AI Releases · · 2.15.0

pydantic-ai v2.15.0: Prompt caching, Mistral prompts, tool retries, and more

sdkaideprecationengineerpython-agentic
feature patch

Pydantic-AI v2.15.0 introduces several new features including explicit prompt caching for OpenAI, inline text files in MistralModel prompts, and support for overriding tool-retry budgets. It also addresses multiple bug fixes related to hosted tool search, array handling, and durability capabilities. This release is primarily for developers and engineers using Pydantic-AI for LLM integrations and agent development.

  • →feat(openai): support explicit prompt caching for gpt-5.6 by @Wh1isper in https://github.com/pydantic/pydantic-ai/pull/6423
  • →Inline text-like files in MistralModel prompts by @pulphix in https://github.com/pydantic/pydantic-ai/pull/6556
  • →Support overriding the tool-retry budget at run/iter/override time by @dsfaccini in https://github.com/pydantic/pydantic-ai/pull/6072
  • →Fix hosted tool_search replay with null call IDs by @adtyavrdhn in https://github.com/pydantic/pydantic-ai/pull/6604
  • →Mark untyped arrays as not strict-compatible for OpenAI by @hramezani in https://github.com/pydantic/pydantic-ai/pull/6547
Features (6) ›
  • feat(openai): support explicit prompt caching for gpt-5.6 by @Wh1isper in https://github.com/pydantic/pydantic-ai/pull/6423
  • Inline text-like files in MistralModel prompts by @pulphix in https://github.com/pydantic/pydantic-ai/pull/6556
  • Support overriding the tool-retry budget at run/iter/override time by @dsfaccini in https://github.com/pydantic/pydantic-ai/pull/6072

  • Support DynamicCapability toolsets in durable execution and wrap DynamicToolset in DBOS steps and Prefect tasks by @DouweM in https://github.com/pydantic/pydantic-ai/pull/6623

  • Add openai_moderation setting and expose OpenAI Responses API moderation results in provider_details by @pydanty[bot] in https://github.com/pydantic/pydantic-ai/pull/6628

  • Deprecate the Exa search common tools in favor of the ExaSearch capability in Pydantic AI Harness by @dsfaccini in https://github.com/pydantic/pydantic-ai/pull/6644

Fixes (5) ›
  • Fix hosted tool_search replay with null call IDs by @adtyavrdhn in https://github.com/pydantic/pydantic-ai/pull/6604
  • Mark untyped arrays as not strict-compatible for OpenAI by @hramezani in https://github.com/pydantic/pydantic-ai/pull/6547
  • Fix durability capability compatibility regressions by @dsfaccini in https://github.com/pydantic/pydantic-ai/pull/6631

  • Fix OpenAI background retrieve 400 for reasoning.encrypted_content on persisted responses by @pydanty[bot] in https://github.com/pydantic/pydantic-ai/pull/6614

  • Round-trip tool control-flow exceptions on DBOS/Prefect, fix Prefect replay edges, and add register_legacy_workflows to DBOSDurability for clean DBOSAgent migration by @DouweM in https://github.com/pydantic/pydantic-ai/pull/6640

Read the original announcement →

https://github.com/pydantic/pydantic-ai/releases/tag/v2.15.0

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