Pydantic AI AI Updates: July 22, 2026

1. Pydantic AI v2.15.0 Adds GPT-5.6 Prompt Caching And Runtime Retry Budgets

Pydantic AI. Pydantic AI released v2.15.0, adding support for explicit prompt caching with gpt-5.6 and the ability to override the tool-retry budget at run, iter, and override time for finer control over failing tool calls. The release introduces an openai_moderation setting that surfaces moderation results through provider_details, improves handling of encrypted content for persisted responses, and adds inline text file handling in MistralModel. It also deprecates the Exa search common tools in favor of the ExaSearch capability in Pydantic AI Harness. Source

2. Pydantic AI v2.14.1 Rolls Back The Durable Wrapper-Agent Deprecation

Pydantic AI. Pydantic AI shipped v2.14.1, which temporarily withdraws the durable wrapper-agent deprecations introduced in v2.14.0, giving teams that rely on the wrapper-agent approach more time before it is removed. The patch also ensures MCP instructions are always fetched via a durable step under DBOSDurability, improving reliability in durable execution contexts. Source