Generative AI and Wikipedia editing: What we learned in 2025, https://wikiedu.org/blog/2026/01/29/generative-ai-and-wikipedia-editing-what-we-learned-in-2025/, from the Wiki Education project, which mainly interfaces Wikipedia with academic course projects involving editing Wikipedia. Their takeaway message: "Wikipedia editors should never copy and paste the output from generative AI chatbots like ChatGPT into Wikipedia articles."
In more detail, they used Pangram to detect AI-written content, then checked it by hand (finding very few false positives!). They found only a low rate of hallucinated sources. However, more concerningly, in more than 2/3 of the flagged articles, they found sourced sentences whose sources did not contain the information in the sentence. More strongly, "For most of the articles Pangram flagged as written by GenAI, nearly every cited sentence in the article failed verification." This also led to a high rate of wasted WikiEdu staff time cleaning up after the student-made AI additions ("far more time attempting to verify facts in AI-generated articles than if we’d simply done the research and writing ourselves").