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AI Legal Sanction Case Database

The AI Legal Sanction Case Database is the authoritative, continuously-updated, free index of publicly reported cases where a US or foreign court sanctioned, warned, or issued an order to show cause over AI-hallucinated citations in a legal filing. According to Citation Safe’s public sanctions database, courts have addressed AI-citation problems in 1000 reported cases tracked here as of today, spanning 2023–2026. New cases are ingested daily.

Cases tracked
2,109
Courts covered
398
Cases with a reported penalty
374
USD-denominated penalties
$1,400,706
across 207 USD cases — other currencies not converted

This is the structured dataset: every row here is a live, queryable record — sortable and filterable by jurisdiction, AI tool, judge, and year, with results pulled fresh on every request. Download the full dataset as CSV. For curated write-ups of the highest-profile entries — case background, why each sanction happened, what to take from it — see the AI Hallucination Sanctions Tracker, our editorial companion to this database.

1,429 cases match these filters · page 6 of 29

CaseCourtJurisdictionJudgeDecidedAI toolOutcomePenaltySource
Minhye Park v. Hon. Barrington D. Parker, et al.S.D. New YorkUSA—2026-07-15GPT-3.5Bar ReferralNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Mullins v. Duquesne University of the Holy SpiritW.D. PennsylvaniaUSA—2026-07-15ClaudeMotion to strike deniedNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Rebecca Jean v. Seattle Credit UnionW.D. WashingtonUSA—2026-07-15UnidentifiedBrief Struck; Severe WarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
State v. DixonCA OregonUSA—2026-07-15ImpliedCitation Struck; Monetary Fine100 USDCase summary (Charlotin AI Hallucination Cases DB)
Valurie Kaye Mettler v. Michigan State Police et al.CA IndianaUSA—2026-07-15ImpliedAdmonishmentNone reportedCase summary (Charlotin AI Hallucination Cases DB)
In re Rosslyn2016, LLC, et al.S.D. Texas (Bankruptcy)USA—2026-07-14Westlaw PrecisionCLE on generative AI; Civil Contempt; Adverse Costs Order29877 USDCase summary (Charlotin AI Hallucination Cases DB)
Tekway, Inc. v. AT&T Services, Inc.N.D. IllinoisUSA—2026-07-14Implied—None reportedCase summary (Charlotin AI Hallucination Cases DB)
Thompson v. County of San DiegoCA California (4d)USA—2026-07-14Lexis+ with ProtégéCounsel withdrew the unsupported quotations and citationsNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Appeal of PDO Ahuska Joint Venture LLCASBCAUSA—2026-07-13ImpliedCitations struckNone reportedCase summary (Charlotin AI Hallucination Cases DB)
James F. v. Commissioner of Social SecurityE.D. MichiganUSA—2026-07-13UnidentifiedCLENone reportedCase summary (Charlotin AI Hallucination Cases DB)
Paige Warthen v. Barclays Bank Delaware (Warthen I, II, III)D. MarylandUSA—2026-07-13ImpliedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Progressive Northern Insurance Company v. Tony Pete Flores, et al.D. NevadaUSA—2026-07-13UnidentifiedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Whyte et al. v. MK United, Inc. et al.S.D. FloridaUSA—2026-07-13Implied—None reportedCase summary (Charlotin AI Hallucination Cases DB)
Julia Rose v. Arts Bonita, Inc., et al.M.D. FloridaUSA—2026-07-12ImpliedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Akerlund v. Atlas Air, Inc., et al.11th Cir. CAUSA—2026-07-10ImpliedBar ReferralNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Birsingh v. Little Wheel, LLC, et al.M.D. PennsylvaniaUSA—2026-07-10ImpliedWarning; Case dismissed with prejudiceNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Cartagena v. Dixon, Blackburn, and T.A. Blackburn Law (2)S.D. New YorkUSA—2026-07-10UnidentifiedMotion Struck; Bar ReferralNone reportedSource (reason.com)
Cheryl O’Donnell v. Hope CloughSC VermontUSA—2026-07-10ImpliedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Del Biaggio v. BansenCA California (4d)USA—2026-07-10UnidentifiedMonetary Sanction1500 USDCase summary (Charlotin AI Hallucination Cases DB)
Holmes v. Cape Meadows Apartments HRMSE.D. MissouriUSA—2026-07-10Implied—None reportedCase summary (Charlotin AI Hallucination Cases DB)
In re Lisa CatoD. D.C. (Bankruptcy)USA—2026-07-10ImpliedMotion for Sanctions deniedNone reportedCase summary (Charlotin AI Hallucination Cases DB)
John P. Chapman v. Officer Decker et al.S.D. IllinoisUSA—2026-07-10ImpliedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Marion Parnell, Jr. v. Florida Department of Corrections11th Cir. CAUSA—2026-07-10ImpliedBrief partly Struck; Adverse Costs Order; Bar ReferralNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Teresa Jewel Whitten v. Kristopher Brian EverittCA KentuckyUSA—2026-07-10ImpliedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
In re the Marriage of YoungCA WashingtonUSA—2026-07-09Implied—None reportedCase summary (Charlotin AI Hallucination Cases DB)
In the Interest of Q.C. and P.C., ChildrenCA TexasUSA—2026-07-09Implied—None reportedCase summary (Charlotin AI Hallucination Cases DB)
Michigan MM, Inc. v. Alea PropertiesCA MichiganUSA—2026-07-09ImpliedBoth parties filed notices of errataNone reportedNo source on file
Burlingame v. Argo Private Client Group Ltd, et al.N.D. OhioUSA—2026-07-08ImpliedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Cynthia Hulse-Gibson v. Charlie HulseCA Florida (2d)USA—2026-07-08ImpliedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
GS Holistic, LLC v. AAR Management LLC, et al.S.D. TexasUSA—2026-07-08ImpliedAdmonishmentNone reportedCase summary (Charlotin AI Hallucination Cases DB)
John Hurt v. Ampcus, Inc.E.D. TexasUSA—2026-07-08ImpliedAdmonishmentNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Michael L. Ruiz v. Magellan Financial & Insurance ServicesD. ArizonaUSA—2026-07-08ImpliedOrder to Show CauseNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Penland v. United StatesCourt of Federal ClaimsUSA—2026-07-07ImpliedMonetary Fine; Adverse Costs Order5000 USDCase summary (Charlotin AI Hallucination Cases DB)
Kevin Krzeminski v. Janine McQuillanSC New YorkUSA—2026-07-06ImpliedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Swinney v. JHOC, Inc.CC Copiah County MississippiUSA—2026-07-06Implied—None reportedCase summary (Charlotin AI Hallucination Cases DB)
Aragon v. Industrial Claim Appeals OfficeCA ColoradoUSA—2026-07-02ImpliedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Corrales v BPG InspectionCA ColoradoUSA—2026-07-02ImpliedAdmonishmentNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Jordan Slach v. City of Battle GroundW.D. WashingtonUSA—2026-07-02ImpliedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Patterson v. Nuvision Credit UnionCA California (4d)USA—2026-07-02UnidentifiedMonetary sanction; Bar Referral (UPL)500 USDCase summary (Charlotin AI Hallucination Cases DB)
Pedro Paulo Mansur Pagano Sampaio v. Wells Fargo Bank, N.A., et al.C.D. CaliforniaUSA—2026-07-02ImpliedOrder to Show CauseNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Edwards v. De Cubas & Lewis, P.A.M.D. FloridaUSA—2026-07-01ImpliedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Gregory Ashley Moyer v. James V. Murray, et al.10th Cir. CAUSA—2026-07-01ImpliedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Kevin Leiske et al. v. Robert Gregory Kidd et al.Delaware Ch.USA—2026-07-01UnidentifiedOrder to Show CauseNone reportedCase summary (Charlotin AI Hallucination Cases DB)
BFG Corporation v. Pierce RE Holdings et al.N.D. IllinoisUSA—2026-06-30ImpliedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Cornelia O. Barnes v. Frank Williams, et al.N.D. AlabamaUSA—2026-06-30ImpliedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
P-Three Development, LLC v. Therm Flo, Inc.CA IllinoisUSA—2026-06-30ImpliedBrief StruckNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Rene Carbonell v. United States of AmericaW.D. TexasUSA—2026-06-30ImpliedNo sanctionsNone reportedCase summary (Charlotin AI Hallucination Cases DB)
State of Missouri v. Timothy H. MooreCA MissouriUSA—2026-06-30ImpliedAppeal DismissedNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Susan Elizabeth Duve v. William Charles Forrest, et al.S.D. TexasUSA—2026-06-30UnidentifiedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)
Yuri Petrini v. City of Biloxi, Mississippi, et al.S.D. MississippiUSA—2026-06-30ImpliedWarningNone reportedCase summary (Charlotin AI Hallucination Cases DB)

This database aggregates publicly reported court sanctions and orders over AI-hallucinated citations. It is informational only, not legal advice, and not a complete record of every such case nationwide — see our free citation checker to verify your own filings before this happens to you.