Well this turns out to be misleading! The LLM was used to rewrite human-written stories in commercial registers ("literary magazine", "published short story collection"). You'd have to read supplemental materials from a zip fle to know that was the methodology. www.theguardian.com/technology/2...
AI-generated stories rated better quality than human-written ones, study finds
Researcher says simpler writing by AI is easier to read and digest, but this does not mean human authors are obsolete
theguardian.com