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Quantifying large language model usage in scientific papers

delete2025-08-04
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PRE
AI
W
Weixin Liang *
Y
Yaohui Zhang
Z
Zhengxuan Wu
H
Haley Lepp
W
Wenlong Ji
X
Xuandong Zhao
H
Hancheng Cao
刘胜 (Sheng Liu)
何思雨 cover
何思雨 (Siyu He)
Z
Zhi Huang
D
Diyi Yang
C
Christopher Potts
C
Christopher D. Manning
J
James Zou *
DOI:10.1038/s41562-025-02273-8delete
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Abstract

Abstract

En 中文
Scientific publishing is the primary means of disseminating research findings. There has been speculation about how extensively large language models (LLMs) are being used in academic writing. Here we conduct a systematic analysis across 1,121,912 preprints and published papers from January 2020 to September 2024 on arXiv, bioRxiv and Nature portfolio journals, using a population-level framework based on word frequency shifts to estimate the prevalence of LLM-modified content over time. Our findings suggest a steady increase in LLM usage, with the largest and fastest growth estimated for computer science papers (up to 22%). By comparison, mathematics papers and the Nature portfolio showed lower evidence of LLM modification (up to 9%). LLM modification estimates were higher among papers from first authors who post preprints more frequently, papers in more crowded research areas and papers of shorter lengths. Our findings suggest that LLMs are being broadly used in scientific writing. Liang et al. estimate the prevalence of text modified by large language models in recent scientific papers and preprints, finding widespread use (up to 17.5% of papers in computer science).

Journal

Nature Human Behaviour cover
Nature Human Behaviour
IF:
15.9
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457
Citations:
1.7W

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