404 Media 2026-05-15-3
ArXiv to Ban Researchers for a Year if They Submit AI Slop
ArXiv's one-year ban targets only 'incontrovertible' cases, meaning LLM meta-comments left in manuscripts and hallucinated references, which leaves sophisticated AI use untouched by design. The Columbia biomedical data behind the policy shows fabricated citations running from 1 in 2,828 papers in 2023 to 1 in 277 in early 2026, and the policy's narrow scope isn't a bug: detection scales with submissions times sophistication, deterrence scales flat, and when the first exceeds budget you switch to the second. bioRxiv, SSRN, and PubMed Central are next, and arXiv's nonprofit transition in July is explicitly fundraising for the verification cost center that every major research repository will have to build.