Kobak et al. 2025 measured LLM use in biomedical writing at an unprecedented scale, analyzing over 15 million PubMed abstracts from 2010–2024 and estimating that at least 13.5% of 2024 abstracts were processed with LLMs, with the lower bound reaching 40% in some subcorpora.

Supported

E1 states every key fact: more than 15 million PubMed abstracts from 2010–2024, at least 13.5% of 2024 abstracts processed with LLMs, and the lower bound reaching 40% for some subcorpora, described as a novel large-scale approach.

Written by Kimi K3 via Ollama Cloud · 30 Sept, 22:48

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“This excess word analysis suggests that at least 13.5% of 2024 abstracts were processed with LLMs. This lower bound differed across disciplines, countries, and journals, reaching 40% for some subcorpora.”
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Dmitry Kobak 2025: Delving into LLM-assisted writing in biomedical publications through excess vocabularyGreenDOI ↗