As the web fills up with junk text written by robots, it's no surprise that AI-generated slop is also making its way into ebooks, YouTube, and even Wikipedia. That last one is a particular problem, since Wikipedia's open access is its greatest strength and its primary method for dealing with misinformation. In response, the site's administrators are using new policies to combat the onslaught of AI text. According to a new policy write-up, Wikipedia administrators now have the authority and the tools to rapidly delete articles and edits that are obviously generated with large language models. But articles that are new or have been substantially rewritten can now be flagged with tags of obvious signs of LLM text, including phrases like "Here is your Wikipedia article on…" or citations and references to things that don't exist.