langchain-ai/langchainjs @langchain/openai@1.5.9

on GitHub

Patch Changes

• #11399 5c9fdf2 Thanks @gethin-langchain! - update to v7 openai sdk

• #11403 fe8eec1 Thanks @thushanth-bengre-langchain! - Drop Gemini-native functionCall content blocks (already carried in tool_calls) when converting messages to Chat Completions API params, fixing requests that fail when a ChatGoogleGenerativeAI message is passed to ChatOpenAI (e.g. a cross-provider handoff in LangGraph).

• #11399 5c9fdf2 Thanks @gethin-langchain! - Map OpenAI's cache_write_tokens to cache_creation in usage_metadata.input_token_details, mirroring the existing cached_tokens -> cache_read mapping across the Chat Completions and Responses APIs. Previously, prompt cache-write token counts were silently dropped.