mirror of
https://github.com/hwchase17/langchain.git
synced 2026-07-01 22:59:06 +00:00
7725ccec03
Closes #38226 --- OpenRouter can emit more than one terminal streaming chunk for a single response. Before this change, LangChain treated each terminal chunk as independent final metadata, so repeated string fields could be merged into corrupted values like `stopstop`. This updates `ChatOpenRouter` streaming so repeated terminal chunks are interpreted as parts of the same response ending. Usage metadata is still captured, later chunks can fill in terminal details that were missing from earlier chunks, and already-seen terminal fields are not duplicated. The regression coverage exercises sync and async generation with duplicate finish chunks, including the case where usage and additional terminal metadata arrive on the later chunk.
FAQ
Looking for an integration not listed here? Check out the integrations documentation and the note in the libs/ README about third-party maintained packages.
Integration docs
For full documentation, see the primary and API reference docs for integrations.