AI-Generated Books Now Capture ~40% of Self-Published Sales, a16z Reports
a16z · x · 2026-08-08
a16z's Charts of the Week newsletter highlights a paper from researchers at Stony Brook, Columbia, and MIT, indicating that generative AI is flooding and diluting the book market.
Data shows that since 2023, the self-published book catalog has surged nearly 40x, while actual revenues have only grown about 9x. Books with detectable AI text now capture roughly 40% of observed sales. AI authorship is taking a volume approach: massively scaling output at low costs, and despite a lower hit rate per book, the aggregate still attracts paying customers.
Related event: AI Books Make Up 40% of Self-Published Sales; Authors Face Proof Burden(15 posts)→
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