Codex TTFB cap default overrides large-context scaling
Cluster 97682. Data as of
Nothing open on GitHub. Fix merged in #115291 on 18 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 #115291. Check it covers your case. No release data is tracked.
- Tracker
- The maintainers' tracker marks this
unresolved. That is separate from the fix event. - Still open
- Nothing open on GitHub.
A bug was identified where the default 120-second TTFB cap cancels out large-context Codex timeout scaling. Related changes explore making the cap opt-in rather than applied by default.
Open issues0
Open PRs0
Fixes on record
-
#115291 openai-codex: large-context TTFB scale-up no longer clawed back to 120s by the cap default (#91621, salvage #91635)
files:
agent/chat_completion_helpers.py,contributors/emails/[email protected],tests/agent/test_codex_ttfb_watchdog.py
1 PR closed without merging
From the close comments: done elsewhere 1
-
#97690 fix(agent): make Codex TTFB max-seconds cap opt-in · done elsewhere →
b196879,#115291,#69228,#91635
Closed issues · 1
- Closed#97682[Bug]: Large-context Codex TTFB scaling is immediately canceled by the default 120s cap
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structural links throughout): every member is connected by structural evidence: shared changed files, or a closing/superseded reference.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
- Merged PRs
- #115291
- Closed issues
- 1
- Attempts
- 1 PR closed without merging
- Fix link checked
- 18 Sep 2026