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AI ‘hallucinations’ created errors in US court filing, top law firm says

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Sullivan & Cromwell is one of the oldest and most prestigious law firms in the US, representing President Donald Trump in several appeals.

Sullivan & Cromwell is one of the oldest and most prestigious law firms in the US, representing President Donald Trump in several appeals.

PHOTO: JOHN TAGGART/NYTIMES

Santul Nerkar

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NEW YORK – An elite Wall Street law firm has apologised to a federal judge for submitting a court filing replete with errors created by artificial intelligence, including “hallucinations” that fabricated case citations.

The AI-generated errors came in a recent motion in US Bankruptcy Court in New York City and were discovered by lawyers from an opposing firm, Mr Andrew Dietderich, a partner at Sullivan & Cromwell, wrote in a letter to Judge Martin Glenn on April 18.

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