Claude 3 is a clear improvement in stylish writing, because it hasn't been turbo-aligned to produce "helpful short form article answers." Coding wise, it depends on the language and a lot of other factors, but I don't think it's a clear winner over GPT4.

I've noticed that Claude likes to really ham up its writing though, and you have to actively prompt it to be less hammy. GPT4's writing is less hammy, but sounds vaguely like marketing material even when it's clearly not supposed to be.