I don't have the "max" reasoning effort settings in the Codex plugin.

Open 💬 0 comments Opened Aug 22, 2026 by Firstmeridian

What version of the IDE extension are you using?

26.818.41509

What subscription do you have?

GPT Plus

Which IDE are you using?

VS Code

What platform is your computer?

Microsoft Windows NT 10.0.26200.0 x64

What issue are you seeing?

In my VS Code Codex extension, the reasoning effort options are not displaying properly:

  1. The "Max" reasoning level option is missing from the reasoning selector menu next to the chat input box.
  2. The Reasoning Effort GUI setting is completely missing from the Configuration panel (only Open config.toml is visible).

<img width="350" height="404" alt="Image" src="https://github.com/user-attachments/assets/fa55c0d7-064a-4022-a5bf-1b3b01e7445b" />

<img width="1049" height="1354" alt="Image" src="https://github.com/user-attachments/assets/515a0aeb-f1fb-4a95-bf02-108c8079c168" />

What steps can reproduce the bug?

  1. Open the chat panel and click the model/reasoning selector menu next to the chat input box.

-> Observe that the "Max" reasoning effort level is not present in the list.

  1. Go to the Codex settings panel and navigate to the Configuration tab.

-> Observe that there are no GUI settings/dropdowns for Reasoning Effort.

What is the expected behavior?

_No response_

Additional information

_No response_

View original on GitHub ↗