Just to provide another datapoint - tried codex September / October after seeing the glowing reviews here, and it was, all in all, a huge letdown.

It seems to be very efficient context-wise, but at the same time made precise context-management much harder.

Opus 4.5 is quite a magnificent improvement over Sonnet 4.5, in CC, though.

Re tfa - I accidentally discovered the new lsp support 2 days ago on a side project in rust, and it’s working very well.

Similar experience and timeline with codex, but tried it last week and it's gotten much better in the interim. Codex with 5.2 does a good job at catching (numerical) bugs that Opus misses. I've been comparing them and there's not a clear winner, GPT 5.2 misses things Opus finds and vice versa. But claude-code is still a much better experience and continues to just keep getting better but codex is following, just a few months behind.

Another anecdote/datapoint. Same experience. It seem to mask a lot of bad model issues by not talking much and overthinking stuff. The experience turns sour the more one works with it.

And yes +1 for opus. Anthropic delivered a winner after fucking up the previous opus 4.1 release.