codex - 💡(How to fix) Fix Can not change model or reasoning effort for new thread [1 comments, 2 participants]

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openai/codex#19139Fetched 2026-04-24 06:00:06
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What version of the Codex App are you using (From “About Codex” dialog)?

26.415.40636

What subscription do you have?

Business

What platform is your computer?

Microsoft Windows 10.0.26200

What issue are you seeing?

Can not change model or reasoning effort for new thread

<img width="1386" height="628" alt="Image" src="https://github.com/user-attachments/assets/5d9c2670-6869-4e81-a633-b6c3d8db8967" />

What steps can reproduce the bug?

  1. open codex desktop app, enter home page
  2. click buttons that change model or reasoning effort
  3. model or reasoning effort does not change

What is the expected behavior?

No response

Additional information

No response

extent analysis

TL;DR

The issue may be resolved by checking the application's configuration or settings related to model and reasoning effort changes.

Guidance

  • Verify that the model and reasoning effort options are properly configured in the Codex App settings.
  • Check if there are any restrictions or limitations in the Business subscription plan that might be causing the issue.
  • Try resetting the application to its default settings to see if the issue persists.
  • If the issue is specific to the version 26.415.40636, consider reaching out to the support team for further assistance.

Notes

The provided information does not include the expected behavior, which might be crucial in identifying the root cause of the issue. Additionally, without more details about the application's settings and configuration, it's challenging to provide a more specific solution.

Recommendation

Apply workaround: Try resetting the application to its default settings or checking the subscription plan limitations, as these are the most likely causes of the issue given the provided information.

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codex - 💡(How to fix) Fix Can not change model or reasoning effort for new thread [1 comments, 2 participants]