Why are Chinese models better* at Frontend than the western top labs?

I use A LOT both openAI and Anthropic products. When I need some frontend work (pure web dev) (or answer that feel less verbose and more to the point) I use Anthropic. For multimodality openAI feels better (understanding audio, screenshots, generating images, etc).

But openAI feels very shitty for the frontend it does. Anthropic is okeish but not amazing. How can it be, that Chinese models all excel at frontend?

Specially when it is a one shot with no many after editions, I some times even prefer the qwen3.6 35B running locally over Gepeto.

Is there any reason for it?

Z models, Qwen, Kimi, they all offer a better and polished frontend result. I guess they do something besides distilling?

*Definition of better: I'm comparing only how they LOOK LIKE, not how efficient the code is, how many lines are needed, etc.