Sullivan & Cromwell Apologizes for AI Errors in Filing

A prominent Wall Street law firm has apologized to a federal judge after submitting a court filing riddled with errors generated by artificial intelligence tools, including fabricated case citations and misquotes of the U.S. Bankruptcy Code.

Sullivan & Cromwell, which represents liquidators appointed by British Virgin Islands authorities in proceedings against Prince Group and its owner, Chen Zhi, acknowledged the mistakes in an April 18 letter from Andrew Dietderich, co-head of the firm's global restructuring practice, to U.S. Bankruptcy Judge Martin Glenn in New York. The errors appeared in an emergency motion filed on April 9 as part of the high-profile case tied to allegations of international fraud. Dietderich wrote, "We deeply regret that this has occurred," and added that he took responsibility for the failure to ensure the accuracy of the submission.

Opposing counsel from Boies Schiller Flexner, representing interests linked to Prince Group, first identified the issues. They notified the court that the filing contained quotes not found in Chapter 15 of the Bankruptcy Code, along with misidentified or nonexistent judicial decisions and inaccurate summaries of legal...