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The quality of code analysis and generation dropped precipitously #30759

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@amatevossian

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

26.623.70822

What subscription do you have?

Pro $200/mo

What platform is your computer?

Darwin 25.5.0 arm64 arm

What issue are you seeing?

Some time last week (probably around 06/23 or 24), the quality of code analysis and output dropped.

Even in a relatively small change, Codex would keep making mistakes and then finding new P1's and P2's during reviews. This process would repeat again and again.

What steps can reproduce the bug?

Feedback ID: 019f19da-678a-7c92-bd3d-53eec5434ada

What is the expected behavior?

Before last week, Codex was working absolutely fine.

Additional information

No response

Activity

  1. added
    appIssues related to the Codex desktop app
    on Jun 30, 2026
  2. added
    bugSomething isn't working
    model-behaviorIssues related to behaviors exhibited by the model
    code-reviewIssues relating to code reviews performed by codex
    on Jun 30, 2026
  3. github-actions commented on Jun 30, 2026

    @github-actions
    Contributor
  4. amatevossian commented on Jun 30, 2026

    @amatevossian
    Author

    I uploaded a couple of performance traces but only have the ID of the last one: 019f19da-678a-7c92-bd3d-53eec5434ada

  5. amatevossian commented on Jun 30, 2026

    @amatevossian
    Author

    Codex reviewed the change: again found a P1.
    Codex fixed the P1 and another review found a new P1.

    As mentioned, this is the 3rd or 4th round and the result is the same.

  6. amatevossian commented on Jul 1, 2026

    @amatevossian
    Author

    more of the same today: found 2 P0's (that's the first) and 2 P1's. All these problems in a single file (DB schema with tables, views, SPs) that so far has accumulated 800 inserted lines and 30 deleted.

    This makes Codex unusable and is a critical issue for me!

  7. amatevossian commented on Jul 1, 2026

    @amatevossian
    Author

    the stats for this thread:

    • 1 day of work
    • ~800 lines changed
    • Issues found by Codex over multiple rounds of "fixing" and reviewing:
      • P0: 2
      • P1: 10
      • P2: 4
      • P3: 3
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