Python SDK

OpenAI released version 2.53.0 of its Python SDK, adding type definitions referencing a model called 'gpt-5.5' along with new tool name/namespace fields for the Responses API. OpenAI has not made any public announcement about a GPT-5.5 model.

Anthropic has released version 0.114.0 of its Python SDK, adding support for the claude-sonnet-5 model. The update also includes a bug fix for the agent toolset that allows absolute paths resolving inside the working directory.