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.

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

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.