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gpt-5.3-codex xhigh → auto switches to gpt-5.3-codex medium mid way #11979

Closed as duplicate
Closed as duplicate
gpt-5.3-codex xhigh → auto switches to gpt-5.3-codex medium mid way#11979
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CLIIssues related to the Codex CLIbugSomething isn't workingmodel-behaviorIssues related to behaviors exhibited by the model

Description

@guidedways
guidedways
opened on Feb 17, 2026

What version of Codex CLI is running?

v0.102.0-alpha.8

What subscription do you have?

Pro

Which model were you using?

gpt-5.3-codex xhigh

What platform is your computer?

macOS

What terminal emulator and version are you using (if applicable)?

iTerm2

What issue are you seeing?

>_ OpenAI Codex (v0.102.0-alpha.8)                │
│                                                   │
│ model:     gpt-5.3-codex xhigh   /model to change

I start above a session with the above, I begin to /plan and after a couple of messages my status-line shows me

gpt-5.3-codex medium · ...

What steps can reproduce the bug?

Not sure what's triggering this, happened twice in a row.

What is the expected behavior?

Stay on the model I'm on!

Additional information

No response

Activity

  1. guidedways
    added
    bugSomething isn't working
    on Feb 17, 2026
  2. github-actions
    added
    CLIIssues related to the Codex CLI
    model-behaviorIssues related to behaviors exhibited by the model
    on Feb 17, 2026

  3. github-actions commented on Feb 17, 2026

    @github-actions
    github-actionsbot
    on Feb 17, 2026 – with GitHub Actions
    Contributor

    Potential duplicates detected. Please review them and close your issue if it is a duplicate.

    Powered by Codex Action

  4. guidedways commented on Feb 17, 2026

    @guidedways
    guidedways
    on Feb 17, 2026
    ContributorAuthor

    This may be related to the ongoing 5.3 → 5.2 fiasco. Please make it stop.

  5. looper200 commented on Feb 17, 2026

    @looper200
    looper200
    on Feb 17, 2026

    Same bug codex keep swithing to medium mid conversation

  6. etraut-openai commented on Feb 17, 2026

    @etraut-openai
    etraut-openai
    on Feb 17, 2026
    Contributor

    We're tracking this in #11013.

  7. etraut-openai
    closed this as a duplicateof Model changes to Medium uninstructed #11013 on Feb 17, 2026
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