Only in November had the open platform arXiv presented new rules for content from LLMs; now there are even tougher sanctions. For various unscientific methods in the papers published there, an immediate ban of one year can be imposed. And if such a person, once caught, submits further work, it will only be published if it has already appeared in another reputable scientific medium or has been accepted for a presentation at a corresponding conference.
ArXiv is reversing its previous procedure in these cases. For over three decades, the platform has been popular among scientists primarily because a publication like a paper or a study does not have to be “peer reviewed” first. This allowed one to avoid – at least temporarily – the time-consuming process, in which people from the same field usually review the content over months. The publications are then “preprints,” which historically stands for material not yet printed. ArXiv has published almost three million such preprints since 1991.
First human review, then ban
Apparently, this possibility is increasingly being misused in the age of artificial intelligence, across all subject areas. At the end of 2025, it was initially stipulated that a peer review is always required for computer science, and the paper must have been accepted by a conference or journal. Now, in the case of an AI violation, this applies to all other areas as well. There is no warning, but there is human review. As Thomas Dietterich, head of the computer science department at arXiv, told 404 Media, a violation must be documented and internally confirmed by one of arXiv's moderators before a ban is imposed. There is also the possibility of appeal, meaning at least a second review if necessary.
