GPT-5.5 Not Showing in Codex (Windsurf Extension) with ChatGPT Pro

What version of the IDE extension are you using?

Windsurf Version: 2.1.32 Windsurf Extension Version: 1.48.2 Windsurf Commit: 63e54ba26dd2a1b975c172966dff80bad8ae74c7 VS Code OSS Version: 1.110.1 (user setup) Date: 2026-04-29T18:54:43.178Z Electron: 39.6.0 Chromium: 142.0.7444.265 Node.js: 22.22.0 V8: 14.2.231.22-electron.0 OS: Windows_NT x64 10.0.26200

What subscription do you have?

ChatGPT Pro

Which IDE are you using?

Windsurf

What platform is your computer?

Microsoft Windows NT 10.0.26200.0 x64

What issue are you seeing?

Hello everyone,

I’ve been developing on Windsurf for a while now. Two days ago, I installed the Codex extension (version 0.5.78) for the first time. Initially, I was using it with my ChatGPT Plus account, but I upgraded to ChatGPT Pro ($200/month) specifically to access more powerful models, especially GPT-5.5.

Right now, I do have access to several models, including GPT-5.4, with different reasoning levels which is great. However, I don’t see GPT-5.5 available anywhere.

I’ve already tried logging out and back in, updating everything, checking settings, and restarting Windsurf, but nothing changed.

So my questions are:

Is it normal that GPT-5.5 is not available in Codex (Windsurf extension), even with a ChatGPT Pro account?

Or did I miss something in the setup or configuration?

My goal is really to stay within Winsurf using Codex, but with access to the most powerful models available.

Thanks in advance for your help :folded_hands:

What steps can reproduce the bug?

Actually, I’ve never had access to the GPT-5.5 model, which I find quite strange since it was released more than 10 days ago. Since I installed Codex, I haven’t been able to use GPT-5.5 at all. So the issue is very easy to reproduce, as it happens all the time.

I’m not sure whether this is normal or not.

What is the expected behavior?

gpt 5.5 model isn't available

<img width="774" height="1347" alt="Image" src="https://github.com/user-attachments/assets/72841771-ac7f-4c27-8dc5-9a6fbd27667e" />

Additional information

_No response_