Model selector broken on new chat

Open 💬 4 comments Opened Apr 23, 2026 by lukemorales
💡 Likely answer: A maintainer (github-actions[bot], contributor) responded on this thread — see the highlighted reply below.

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

26.422.20832 (2025)

What subscription do you have?

Codex Pro

What platform is your computer?

Darwin 25.4.0 arm64 arm

What issue are you seeing?

I cannot change the model or reasoning for a new chat (regardless if it's a project chat, or the new chat feature), the selector does not change

What steps can reproduce the bug?

Press the button to start a new chat, and click to select a new model or change the reasoning

What is the expected behavior?

That the model or reasoning I pick is applied to the chat

Additional information

Here's a video of what's happening:

https://github.com/user-attachments/assets/d1f036a5-f39a-479b-b7fb-d1979a9abb54

View original on GitHub ↗

4 Comments

github-actions[bot] contributor · 4 months ago

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

  • #19139
  • #18412
  • #18624
  • #17933

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movy · 3 months ago

Same issue in VSCode Codex extension, how come it is unfixed for so long? Always have to waste some tokens just to send a message to switch to a better model...

movy · 2 months ago

It is still broken btw! How a trillion dollar company can produce such startupish slop? Your devs have access to best models in the world and this is their end product.... very underwhelming.

SwordOfSouls · 1 month ago

Issue still occurs!