AI Books Flood Amazon as 63% of Religious Titles Flagged, Human Authors Squeezed

IndustryProduct / Tech
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Summary · why it matters

AI-generated books are proliferating across Amazon, with new research pointing to growing competition for human authors and lower revenue per selling book. An Originality.AI analysis of 2,034 religious books published on Amazon found that 1,272, or 63%, were flagged as likely written by large language models. Separately, a Stony Brook University-led study examined 14,419 self-published genre-fiction books sold on Amazon from 2023 through 2026 and found 2,880 had more than 25% of their prose flagged as AI. That study found the number of books with observed quarterly sales increased 19.2-fold over three years, while quarterly revenue rose 8.9-fold, indicating lower revenue per selling book, with books without detected AI text losing the most ground in genres with higher AI diffusion. Paramveer Dhillon, an associate professor of information at the University of Michigan and study coauthor, told Fortune that the crowding-out effect from these books means human authors are likely to get squeezed and their revenues reduced, while Tuhin Chakrabarty, an assistant professor of computer science at Stony Brook University and study coauthor, said an algorithmic bubble could make it harder for lesser-known human authors to appear in related-book listings. Amazon requires self-published authors to disclose AI-generated text and limits uploads to three titles per day, and an Amazon spokesperson told Fortune the company uses safeguards to prevent, detect and remove books that violate its content guidelines.

Impact on stocks 1

Artificial Intelligence▲ · 1 stocks
Amazon.com Inc
AMZN
± MixedCompetitionrelevance

AI-generated books are flooding Amazon's marketplace, crowding out human authors and lowering revenue per selling book, though Amazon's disclosure rules and safeguards are also cited.

Off-coverage companies 1

Originality.AIPrivate▲ Positive
Demandrelevance

Originality.AI's analysis is the research underpinning the story, highlighting demand for its AI-detection service as 63% of religious titles were flagged.

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