arXiv imposes submission throttling amid flood of AI junk papers
arXiv announced throttling on preprint submissions, with each researcher allowed at most 2 submissions per calendar month and at most 3 submissions under review at the same time, because low-quality papers generated by AI have overwhelmed the volunteer moderation team. According to arXiv data, monthly submissions increased from 9,869 in September 2016 to 40,363 in September 2026, doubling within two years, the computer science category grew sixfold, and there appeared a large number of narrow-scope thin papers, sausage-slicing split papers, and low-value AI-written papers.
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