langchain
https://github.com/langchain-ai/langchain
Python
⚡ Building applications with LLMs through composability ⚡
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- Issues
- fix(openai): omit timeout from client_params when not set by user
- fix(anthropic): omit timeout from client_params when not set by user
- docs(core): clarify supported formats for multimodal inputs in ModelProfile
- fix(core): fix `trim_messages` misclassification of per-message token_counter
- ChatOpenAI/ChatAnthropic: request_timeout=None (default) disables SDK timeout, causing infinite hangs
- fix(core): prevent inflated token counts when merging streaming usage_metadata
- gpt-5.4+ models not detected as Responses API models, causing tool_choice.function error
- AI 效率工具实践分享 - 基于 LangChain 的工作流
- .
- Support for gemini-3.1-flash-lite-preview and gemini-3-flash-preview from Google AI Studio
- Docs
- Python not yet supported