Model selection not working for Codex(OpenAI) based models

[CaioDGallo]

I selected gpt-5.3-codex as the model for a task. When hitting the "go" button, the task started, but it was using Opus 4.6 instead. I don't know if Codex support isn't fully functional yet; if so, this issue can be ignored.

model-selecting-bug.mp4

PostHog Code info:
Version: 0.42.8
Commit: 9adc809
Date: 2026-03-25T20:30:27.820Z
Electron: 41.0.2
Chromium: 146.0.7680.72
Node.js: 24.14.0
V8: 14.6.202.11-electron.0
OS: darwin arm64 25.2.0