> As a non-US citizen Opus 4.8 is the best American LLM I will ever have access to.
Codex-5.5 > Opus 4.8, so that's not true.
Where does 5.5 beat Opus 4.8?
Reviews for one. It's reviews are phenomenal.
Yes and no. The hot moment I tried Fable that thing gave reviews so good I was already considering automation to cut a review for every PR in the company. Its coding abilities though were not that good.
GPT 5.5 is by far the best coding model.