AI-generated ebooks flood Amazon, squeezing earnings of human authors
A study of over 14,000 Amazon titles shows AI-written books have surged, crowding out traditional works and reducing average author revenue, confirming the market-harm concerns of the US Copyright Office.
Anthropic acquired and digitized millions of used books, destroying the physical copies, a method a judge ruled fell within fair-use law. The US Copyright Office later warned that using copyrighted material to produce competing commercial content exceeds traditional fair-use limits. An analysis of more than 14,000 Amazon ebooks from 2023-2026 revealed a dramatic rise in titles containing substantial AI-generated text, with the count of such books expanding 19-fold and overall spending on them increasing nine-fold.
Meanwhile, books without detected AI content lost market share as the AI-driven flood expanded. This pattern matches the Copyright Office’s market-harm test, showing human authors now compete with near-costless AI output. Ed Newton-Rex of the nonprofit Fairly Trained declared the findings invalidate AI firms’ claim that their models do not financially hurt creators.
Why it matters
It shows AI can undercut writers' earnings by flooding the market with cheap, AI-written books.
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