ArXiv Blocks AI-Generated Papers by Requiring Peer Review for Review Articles

ArXiv, the preprint server used by hundreds of thousands of researchers globally, now requires computer science review articles and position papers to have passed peer review at a journal or conference before acceptance. The policy, updated in October 2025, responds to a surge of AI-generated submissions flooding the platform. The shift transforms ArXiv from a rapid-access preprint venue into a post-publication repository for these content types, potentially delaying synthesis work circulation.