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AI Abuse Court Cases

Search 691 source-linked cases involving fabricated citations and other AI-generated legal errors.

814 judge-case associations across 549 judges and 187 courts.

691Cases
814Judge-case associations
549Judges
187Courts

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691 cases found · 10 maximum per page

AI-related case

Grant v. City of Long Beach

U.S. Court of Appeals for the Ninth Circuit · National federal courts · Mar 22, 2024

AI UseThe appellants’ lawyer submitted an opening brief riddled with hallucinated cases and mischaracterizations. The court did not directly investigate the technological origin but cited the systematic errors as consistent with known AI-generated hallucinati…

Judges: Holly Aiyisha Thomas, Roopali H. Desai, Rosemary Márquez

Striking of Brief + Dismissal of AppealRead the decision ↗

AI-related case

Michael Cohen Matter

U.S. District Court for the Southern District of New York · New York · Mar 20, 2024

AI UseMichael Cohen, former lawyer to Donald Trump but then disbarred, used Google Bard to find case law supporting his motion for early termination of supervised release. He stated he believed Bard was a "super-charged search engine" and was unaware it could…

Judges: Jesse Matthew Furman

No Sanction on Cohen (Lawyer expected to verify); Underlying motion deniedRead the decision ↗

AI-related case

Park v. Kim

U.S. Court of Appeals for the Second Circuit · National federal courts · Jan 30, 2024

AI UseCounsel admitted using ChatGPT to find supporting case law after failing to locate precedent manually. She cited a fictitious case (Matter of Bourguignon v. Coordinated Behavioral Health Servs., Inc., 114 A.D.3d 947 (3d Dep’t 2014)) in the reply brief,…

Judges: Alison Julie Nathan, Sarah Ann Leilani Merriam

Referral to Grievance Panel + Order to Disclose Misconduct to Client.Read the decision ↗

AI-related case

Morgan v. Community Against Violence

U.S. District Court for the District of New Mexico · New Mexico · Oct 23, 2023

AI UsePlaintiff, acting without counsel, submitted briefing that included multiple fabricated or erroneous judicial citations, likely generated by an AI tool used for research or drafting. While the tool itself is not named, the nature and clustering of error…

Judges: William Paul Johnson

Partial Dismissal + Judicial WarningRead the decision ↗