kindle-unlimited-39315a22·1 events·first seen Aliases: Kindle Unlimited
A new arXiv paper analyzes 14,419 self-published genre-fiction books on Amazon from 2023–2026, using AI detection to measure the commercial impact of AI-generated content. Books with substantial AI text (>25%) grew to occupy a large catalog share and a growing fraction of sales and top-rank positions, even without disclosure. The market saw a 19.2x increase in selling books but only 8.9x revenue growth, meaning revenue per book fell — with human-authored books losing the most ground in high-AI-diffusion genres. The authors argue generative AI reshapes creative markets through scale rather than quality, with direct implications for copyright fair use doctrine.