Alright, I registered new account to try using Codex. There seems to be a lot of inconsistency:
- I was able to use o3 in Codex, although limits are so low it’s impractical for anything
- o4-mini works
- “Limits” in profile shows “o3” as locked due to lacking verification (?!?)
- There’s no o3-mini on limits page, also in /v1/models endpoint
Looks like a bug? What can be a reason to allow o4-mini but not o3-mini? Also seems like web site info is inconsistent with backend.