A Stanford University professor and misinformation expert accused of making up citations in a court filing has apologized — and blamed the gaffe on his sloppy use of ChatGPT. Jeff Hancock made the ironic errors in a Nov.

Communication professor Jeff Hancock said he overlooked “hallucinated citations” in a court declaration he crafted with assistance from ChatGPT.

A misinformation expert accused of using AI to generate a legal document admitted he used ChatGPT to help him organize his citations, leading to “hallucinations” that critics said called the entire filing into question.

The professor’s legal imbroglio illustrates one of the most common problems with an AI technology that has taken the world by storm.

Communications professor Jeff Hancock cited two nonexistent sources in a recent court declaration against political deepfakes. Plaintiffs believe Hancock used AI tools that “hallucinated” the sources.

A Stanford University misinformation expert has admitted using artificial intelligence to draft a court document that contained multiple fabricated citations about AI. Jeff Hancock, a professor at Stanford, submitted the document in a case involving a Minnesota law that makes it illegal to use AI to mislead voters ahead of elections.

In an bizarre twist, a Stanford University expert who studies misinformation appears to have created some of his own — while under oath. On Nov. 1, Jeff Hancock, a well-known and oft-cited researcher who leads the Bay Area school’s Social Media Lab,