Reasoning effort now a standard chat parameter
langchain-openai==1.4.0
1 featureThis release1 featureNew capabilitiesAI-tallied from the release notes
From the original release noteView original ↗
Changes since langchain-openai==1.3.5
release(openai): 1.4.0 (#38983)
chore: bump pillow from 12.2.0 to 12.3.0 in /libs/partners/openai (#38999)
feat(core): add reasoning_effort as a standard chat model parameter (#38887)
chore(model-profiles): refresh model profile data (#38797)
Fetched July 21, 2026
