Codex Performance issue after update to latest version - on Mac

Open 💬 1 comment Opened Aug 26, 2026 by zameerzam

What version of the Codex App are you using (From “About Codex” dialog)?

26.818.61809

What subscription do you have?

Plus

What platform is your computer?

MacBook Pro 26.5.2

What issue are you seeing?

Yes—I pulled the available statistics from your recent Codex task history.

Across 34 completed turns in 8 tasks:

  • Median duration: 5m 15s
  • Average: 11m 03s
  • 75th percentile: 15m 01s
  • 90th percentile: 30m 12s
  • Maximum: 44m 21s
  • 13 of 34 turns exceeded 10 minutes
  • 6 of 34 exceeded 20 minutes

The strongest regression signal:

  • Latest 10 turns: median 8m 58s
  • Previous 10 turns: median 2m 41s
  • That is approximately 3.3× slower by median
  • Mean increased from 9m 20s to 11m 21s

Your last simple support question also took approximately 40 seconds.

What steps can reproduce the bug?

Yes—I pulled the available statistics from your recent Codex task history.

Across 34 completed turns in 8 tasks:

  • Median duration: 5m 15s
  • Average: 11m 03s
  • 75th percentile: 15m 01s
  • 90th percentile: 30m 12s
  • Maximum: 44m 21s
  • 13 of 34 turns exceeded 10 minutes
  • 6 of 34 exceeded 20 minutes

The strongest regression signal:

  • Latest 10 turns: median 8m 58s
  • Previous 10 turns: median 2m 41s
  • That is approximately 3.3× slower by median
  • Mean increased from 9m 20s to 11m 21s

Your last simple support question also took approximately 40 seconds.

What is the expected behavior?

_No response_

Additional information

_No response_

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1 Comment

prakashsaraf · 2 days ago

Yes, same for me, Codex have been drastically slow after the update today, compared to the previous versions. Same Mac version - 26.818.61809.