langchain-openai==1.4.1
npx @buildinternet/releases get rel_tfH54Gc3QxLtlIculXH-1
Changes since langchain-openai==1.4.0
release(openai): 1.4.1 (#39045) feat(anthropic,fireworks,openai): support langsmith gateway through env var (#38742) fix(openai): correct gpt-5.3-chat-latest profile (#39009)
gpt-5.3-chat-latest
Fetched July 24, 2026
LangChain Fireworks now supports the LangSmith gateway through an environment variable, alongside Anthropic and OpenAI implementations.
Structured output is now enabled for Claude Opus 4.8. The LangSmith gateway is now supported through an environment variable across Anthrop…
Added support for prompt linking via propagate_attributes in tracing, and OpenAI service_tier is now captured in model_parameters. Fixed ha…
OpenAI provider now supports GPT-5.6, including reasoning and prompt cache controls.
