This Wikipedia entry covers more than tone and style. There are small things that LLM-generated content will almost always do. The emdash used to be one of the

This Wikipedia entry covers more than tone and style. There are small things that LLM-generated content will almost always do. The emdash used to be one of them; transition word overuse is another; being overly verbose by default is yet another. That said, I posit that it will get increasingly difficult to keep this page up to date as models get smarter about how they write.