AI BriefingAI-generated text spreads through papers and peer reviews
·2026.05.05 22:17
Key point
AI-generated text is rapidly increasing in scientific papers and peer reviews.
Details
Multiple studies signal a rapid rise in AI-generated text in scientific literature.
- An Organization Science analysis scanning over 7,000 abstracts and over 8,000 peer review reports found that submissions rose 42% since November 2022, with the increase driven mainly by AI.
- As of February 2026, submissions containing over 70% AI-generated text were more than double what they were in early 2024.
- Some AI text was also detected in over 30% of peer reviews.
- An analysis of about 5,000 biomedical papers classified 6 papers as entirely AI-written, and about 1 in 8 as containing some AI text.
- An analysis of 124,000 arXiv papers found that the share of AI text in computer science review preprints jumped from 7% in 2023 to 43% in 2025, while non-review papers rose from 3% to 23%.
Detection tools may fail to distinguish edited sentences from fully generated ones or produce false positives, so the actual scale should be interpreted conservatively.
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