Can AI write fan fiction in any author's voice ?

AO3 has had to rethink moderation — both because of the volume and because of pastiche so good it's hard to tell from human-written.

AI systems have made significant progress in generating creative writing, including fan fiction, in various authors' voices. These models can learn to mimic the style and tone of a particular author by analyzing their existing works and using this information to generate new content. However, the quality and coherence of the generated fan fiction can vary greatly depending on the complexity of the author's style and the size of the training dataset. Current AI models can produce impressive results, but they still struggle to fully capture the nuances and subtleties of human authors.

— Enriched May 9, 2026 · Source: The Guardian — https://www.theguardian.com/technology/2020/may/26/ai-fiction-machine-learning-author-writing