reasoning_effort none not preserved in OpenAI Responses
Cluster 75227 · agent. Data as of
Nothing open on GitHub. Fix merged in #115765 on 19 Sep 2026. Check it covers your case.
The short answer
- Known?
- Yes. 3 related items grouped here, 1 issue already closed.
- Fix event
- A fix was merged to main in PR #115765. Check it covers your case. No release data is tracked.
- Tracker
- The maintainers' tracker marks this
resolved, deciding PR #115765. That is separate from the fix event. - Still open
- Nothing open on GitHub.
A bug where explicitly setting reasoning_effort to 'none' was silently ignored or overridden on OpenAI Responses, plus related fixes for model compatibility and config propagation.
Open issues0
Open PRs0
Fixes on record
-
#115765 fix(codex): reasoning_effort none is sent on OpenAI Responses, gpt-4o/4.1 no longer 400 on openai-api, ACP honors reasoning config (#75227, #76255, #85153, salvage #85164)
files:
acp_adapter/session.py,agent/auxiliary_client.py,agent/curator.py,agent/model_metadata.py,agent/transports/codex.py,contributors/emails/[redacted:email],gateway/slash_commands_session.py,plugins/platforms/feishu/feishu_comment.py,tests/acp_adapter/test_session_reasoning_config.py,tests/agent/test_auxiliary_client.py,tests/agent/test_curator.py,tests/agent/test_error_classifier.py,tests/agent/transports/test_codex_transport.py,tests/gateway/test_compress_command.py,tests/gateway/test_feishu_comment.py,website/docs/user-guide/configuration.md
1 PR closed without merging
From the close comments: superseded by another PR 1
- #75234 fix(responses): preserve explicit reasoning none · superseded by another PR
Closed issues · 1
- Closed#75227[Bug]: reasoning_effort: none silently falls back to the model default on OpenAI Responses
How this cluster was grouped
-
Link evidence (
structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference. -
Pairwise link density
0.67: the share of item pairs that carry a link, counting a structural link in full and a relevance-only link at 0.36.1.00means every pair is linked.
Pick up a Lab task
Check whether a fix covers the open issues here, with your own agent. Bring back evidence for maintainers.
Open the LabAt a glance
- Subsystem
- agent
- Merged PRs
- #115765
- Closed issues
- 1
- Attempts
- 1 PR closed without merging
- Fix link checked
- 19 Sep 2026