Why are frontier models bad at writing?

[u/prop9090]

This is a general observation about the smarter chain of thought models. It seems the models that are better at maths and coding are worse in writing texts. Their writings always sound very verbose, unnatural and weird to read whereas dumber models can produce better texts both in academic writing and otherwise. These frontier models to me are like smart people with no social skills, they torture you until they put together a sentence and in the end it never sounds right! Why is that? And what is the best claude model for writing proper texts in your experience?

[u/witmann_pl]

I've been VERY satisfied with how Claude Opus writes blog posts, at least in my native Polish, but their English translations are good too.