New York Lawyers Sanctioned for Using Fake ChatGPT Cases in Legal Brief

A response by ChatGPT, an AI chatbot developed by OpenAI, is seen on its website in this illustration picture taken on Feb. 9, 2023. Florence Lo/Reuters

NEW YORK—A U.S. judge on Thursday imposed sanctions on two New York lawyers who submitted a legal brief that included six fictitious case citations generated by an artificial intelligence chatbot, ChatGPT.

U.S. District Judge P. Kevin Castel in Manhattan ordered lawyers Steven Schwartz, Peter LoDuca, and their law firm Levidow, Levidow & Oberman to pay a $5,000 fine in total.