One Sheet, a newsletter about newsletters, has suffered several issues, including misattributed information and made-up quotes, leading to questions about whether its AI use is leading to
hallucinations, Semafor alleges. The publisher of One Sheet, media news site Mediaite, has suspended author Colby Hall. Hall told Semafor that “written ideas, angles, summaries, takes, and
editorial judgments are mine,” although he uses AI in a “limited way.”