From Fortune · Sasha Rogelberg · · 2m
AI slop books are eating authors' paychecks
Amazon is filling up with machine-written titles, and the humans competing against them are earning less per book.
In brief
Amazon is filling up with machine-written titles, and the humans competing against them are earning less per book. The flood of AI books does not have to be good to hurt human authors, it just has to crowd the shelf and split the search traffic. Originally reported by Fortune.
The book that got pulled
In March, Hachette yanked the horror novel "Shy Girl" from its U.S. release after allegations the author used AI to write it. She denied it. The book came off Amazon and U.K. shelves anyway.
Sixty three percent flagged
An Originality.AI report looked at 2,000-plus religion books published on Amazon in a year. It flagged 1,272 of them, 63%, as likely written by a large language model.
One in five novels
A Stony Brook study ran 14,419 self-published genre-fiction books from 2023 to 2026 through detector Pangram. About 2,880 had substantial AI text. Nearly 1,000 were more than 90% machine-written.
More books, less money
Over three years, books with recorded quarterly sales grew 19.2-fold. Revenue grew only 8.9-fold. Each title now earns roughly half what it used to.
The squeeze is the point
Researchers call it a crowding-out effect. With so many titles competing, any single human-written book is less likely to get picked, so its author takes home less.
“they're likely to get squeezed, and their revenues are reduced”
Amazon's thin guardrails
Self-published authors must disclose AI use and can upload only three titles a day. Amazon says it takes proactive and reactive measures to remove books that break its content guidelines.
“Our content guidelines govern which books can be listed for sale”
The algorithm feeds itself
More AI titles means more clicks on AI titles, which pushes them higher in search and related listings. A first-time novelist may never surface at all.
“that book might not even show in the related books listing”
Authors fight back in court
Writers have sued OpenAI, Meta, Anthropic, and xAI over training on their books. In July a federal judge approved a $1.5 billion settlement against Anthropic over millions of pirated titles.
Barnes and Noble draws a line
CEO James Daunt says the chain actively excludes AI books from its catalogue and wants publishers to label them. He admits the edge cases get messy: is 25% AI still a human book?
“This is a straightforward rejection of AI books.”
Pick your clan
The researchers expect the market to split: cheap formulaic AI output on one side, literary fiction machines cannot yet fake on the other. Authors will have to choose a side.
“So I guess human authors will find which clan they want to belong to.”
The essence
The flood of AI books does not have to be good to hurt human authors, it just has to crowd the shelf and split the search traffic.
