What kind of coding/tasks?
I find all of the main ones, including the Chinese ones, to be basically on par.
Enterprise programming (CRUD all the way down, not simple one though, full ERP)
Just ask Opus and Kimi to build a game about something random, like "make a Mario Kart-inspired game." Opus gives better results most of the time. That doesn't mean you can't get your particular job done with either of these models.
Yep, one shotting games, UI in general, is where I found them to be lacking, it tracks with my experience.
They do get there with guidance, to me the quality in one shotting things is not relevant though and I don't find I tracking quality on long horizon tasks.