reasoning_effort standard parameter added to chat models
langchain-core==1.5.0
1 featureThis release1 featureNew capabilitiesAI-tallied from the release notes
From the original release noteView original ↗
Changes since langchain-core==1.4.9
release(core): 1.5.0 (#38978)
feat(core): add reasoning_effort as a standard chat model parameter (#38887)
chore: bump soupsieve from 2.8 to 2.8.4 in /libs/core (#38750)
chore: bump mistune from 3.2.1 to 3.3.0 in /libs/core (#38783)
Fetched July 21, 2026
