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AI Hallucination Cases Database
Database tracking legal cases where generative AI produced hallucinated citations submitted in court filings.
Texas (USA)22 April 2025Pro Se LitigantUnidentified5 non-existent cases and misrepresentation of three othersWarning — ▸ Although no immediate sanctions were imposed, Magistrate Judge Ho explicitly warned Plaintiff that future misconduct of this nature may violate Rule 11 and lead to consequences. Hallucination Details The motion cited ten fabricated decisions—each with full party names, court locations, file numbers, and dates—purportedly showing that indirect child support debts owed to the National Insurance Institute could be discharged in bankruptcy. Smith v. Farwell Massachusetts (USA)12 February 2024LawyerUnidentified3 fake casesMonetary Fine (Supervising Lawyer) 2000 USD ▸ AI Use In a wrongful death case, plaintiff's counsel filed four memoranda opposing motions to dismiss.
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