I haven't used CC in a few months, what killer features have they added? I am using Cursor, it's clunky, but not that clunky so as to completely destroy model performance. I am pretty sure for my tasks (undocumented, buggy, legacy JavaScript project) GPT-5.2 is > all on any decent harness, because it doesn't give up or half-ass. It can run for 5 minutes or for 50 minutes, depending on your request.
it's not about features (although they've added plenty), its the internal tooling and the way the model is prompted.
we dont have capability to see the inner working of claude code, its not open source. You just use it and you see the difference. I've tried all of them, including anti-gravity. Nothing beats claude code
lol bold claim initially for not using the primary competitor in months. I try to use all 3 (Claude Code, Codex CLI, Gemini CLI); there are tradeoffs between all 3