The oldest and best-known preprint repository, arXiv, has announced that it will no longer accept review or position papers in computer science. The website will make exceptions only for papers that have been previously accepted by a peer-reviewed venue, such as a journal or conference.

These types of article were never officially on arXiv’s list of ‘accepted content types’, but they had previously been allowed at moderator discretion, said a blog post announcing the move on 31 October. arXiv management says the move was made necessary by a surge in low-quality papers, including many that appear to be written using generative artificial intelligence (AI) tools.