Books with substantial AI text reportedly crowd out non-AI book sales on Amazon

A coauthor of a new paper on AI and copyright says the team used Pangram’s full-text AI detection to study self-published genre fiction sold on Amazon from 2023 through March 2026. The coauthor says books with substantial AI text are earning significant money and crowding out sales of non-AI books. They argue that sheer volume can affect the market even if individual books aren’t high quality.