AI-heavy books reuse rare phrases more often, and sales rise with that coverage
TuhinChakr · x · 2026-07-28
The figures in the thread show two related patterns:
- AI-heavy books draw a higher share of their text from rare phrases found in existing books.
- Commercial success appears to increase with that rare-expression coverage for AI-written books, but the same relationship is much weaker for non-AI books and award-winning literary fiction.
In other words, the paper argues that AI-written books are not simply imitating style at the margin; they are statistically distinct in how they recycle prior text.
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