Unable to adjust Intelligence level in ChatGPT model picker

Please see the attached screenshots. I have also described the issue below.

Issue:
The ChatGPT web model picker does not show the Intelligence options, such as Instant, Medium, and High. I can only see GPT-5.5 and model versions such as 5.5, 5.4, 5.3, 5.2, and o3.

Expected:
The model picker should allow me to switch the Intelligence level between Instant, Medium, and High.

Actual:
The Intelligence options are missing or inaccessible, so I cannot adjust the intelligence level.

Troubleshooting already tried:

  • Cleared cookies and site data for chatgpt.com, openai.com, and auth.openai.com.
  • Cleared browser cache.
  • Logged out and logged back in.
  • Restarted Google Chrome.
  • Tried incognito mode.
  • Disabled browser extensions.
  • Refreshed the page multiple times.

Screenshots:

  • Screenshot 1: Affected UI — Intelligence options are missing.
  • Screenshot 2: Expected UI — Intelligence options are visible.

A post was merged into an existing topic: June 10 model picker rollout issue: Thinking / Pro unavailable on Web but available on mobile