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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
- 1,897
- Courts covered
- 393
- Cases with a reported penalty
- 348
- USD-denominated penalties
- $1,290,986
- across 191 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.
1,897 cases match these filters · page 2 of 38
| Case | Court | Jurisdiction | Judge | Decided | AI tool | Outcome | Penalty | Source |
|---|---|---|---|---|---|---|---|---|
| Al-Hamim v. Star Hearthstone | Colorado | USA | — | 2024-12-26 | Unidentified | No Sanction (due to pro se, contrition, etc.); Warning of future sanctions. | None reported | Source (coloradojudicial.gov) |
| Buckeye Trust v. PCIT | Income Tax Appellate Tribunal (ITAT), Bangalore | India | — | 2024-12-30 | Implied | Judgment was retracted and case re-heard | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Postma v. York | D. Iowa | USA | — | 2025-01-02 | Unidentified | Brief Struck; Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Mavundla v. MEC | High Court | South Africa | — | 2025-01-08 | Implied | Leave for appel dismissed with costs; referral to Legal Practice Council | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| O’Brien v. Flick and Chamberlain | S.D. Florida | USA | — | 2025-01-10 | Implied | Case dismissed with prejudice, inter alia for use of fake citations and misrepresentations | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Strong v. Rushmore Loan Management Services | D. Nebraska | USA | — | 2025-01-15 | Implied | Motion to dismiss granted; no sanctions imposed, but court warned that repetition could result in sanctions or filing restrictions | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Candice Dias v Angle Auto Finance | Fair Work Commission | Australia | — | 2025-01-20 | Implied | — | None reported | Source (austlii.edu.au) |
| Arajuo v. Wedelstadt et al | E.D. Wisconsin | USA | — | 2025-01-22 | Unidentified | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Strike 3 Holdings LLC v. Doe | C.D. California | USA | — | 2025-01-22 | Unidentified | — | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Body by Michael Pty Ltd and Industry Innovation and Science Australia | Administrative Review Tribunal | Australia | — | 2025-01-24 | ChatGPT | Fake references withdrawn before the hearing | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Fora Financial Asset Securitization v. Teona Ostrov Public Relations | SC New York | USA | — | 2025-01-24 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Olsen v Finansiel Stabilitet | High Court | UK | — | 2025-01-25 | Implied | No contempt, but might bear out on costs | None reported | Source (judiciary.uk) |
| Gonzalez v. Texas Taxpayers and Research Association | W.D. Texas | USA | — | 2025-01-29 | Lexis Nexis's AI | Plaintiff's response was stricken and monetary sanctions were imposed. | 3961 USD | Case summary (Charlotin AI Hallucination Cases DB) |
| Hanna v Flinders University | South Australia | Australia | — | 2025-01-29 | Implied | — | None reported | Source (anzlaw.thomsonreuters.com) |
| Pettit v. Allina Health System | D. Minnesotta | USA | — | 2025-01-30 | Implied | Monetary Sanction | 10000 USD | Case summary (Charlotin AI Hallucination Cases DB) |
| Valu v. Minister for Immigration and Multicultural Affairs | Federal Circuit and Family Court of Australia (Division 2) | Australia | — | 2025-01-31 | ChatGPT | Referral to Legal Services Commissioner | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Tomlin v. State of New Mexico | D. New Mexico | USA | — | 2025-02-01 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| QWYN and Commissioner of Taxation | Administrative Review Tribunal of Australia | Australia | — | 2025-02-05 | Copilot | The Tribunal affirmed the decision under review, rejecting the applicant's submissions based on the AI-generated content. | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Luck v Commonwealth of Australia | Federal Court | Australia | — | 2025-02-11 | — | The court dismissed the applicant's interlocutory application for disqualification and referral to a Full Court. | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| State v. Saher | CC Ohio | USA | — | 2025-02-11 | ChatGPT | Attorney asked to withdraw guilty plea | None reported | Source (cpdocket.cp.cuyahogacounty.gov) |
| Goodchild v State of Queensland | Queensland IRC | Australia | — | 2025-02-13 | "Internet searches" | Relevant submissions ignored | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Geismayr v. The Owners, Strata Plan KAS 1970 | Civil Resolution Tribunal | Canada | — | 2025-02-14 | Copilot | Citations ignored | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Re Nicholson | Ontario SCJ | Canada | — | 2025-02-18 | Implied | Costs awarded against Bankrupt | 7267 | Case summary (Charlotin AI Hallucination Cases DB) |
| Saxena v. Martinez-Hernandez et al. | D. Nevada | USA | — | 2025-02-18 | Implied | Complaint dismissed with prejudice; no formal AI-related sanction imposed, but dismissal explicitly acknowledged fictitious citations as contributing factor | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Plonit v. Sharia Court of Appeals | High Court | Israel | — | 2025-02-23 | Unidentified | Petition Dismissed Outright; Warning re: Costs/Discipline. | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Wadsworth v. Walmart (Morgan & Morgan) | D. Wyoming | USA | — | 2025-02-24 | Internal tool (ChatGPT) | $3k Fine + Pro Hac Vice Revoked (Drafter); $1k Fine each (Signers); Remedial actions noted. | 5000 USD | Court order (CourtListener) |
| Merz v. Kalama | W.D. Washington | USA | — | 2025-02-25 | Unidentified | — | None reported | Court order (CourtListener) |
| Yu Hon Tong Thomas v Centaline Property Agency | High Court | Hong Kong | — | 2025-02-26 | Unidentified | — | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Bunce v. Visual Technology Innovations (1) | E.D. Pennsylvania | USA | — | 2025-02-27 | ChatGPT | Monetary Sanction + Mandatory CLE on AI and Legal Ethics | 2500 USD | Case summary (Charlotin AI Hallucination Cases DB) |
| Dog Rights v. Ministry of Agriculture | High Court | Israel | — | 2025-02-28 | Implied | Petition dismissed on threshold grounds for lack of clean hands and inadequate legal foundation. Petitioner ordered to pay costs | 7000 ILS | Case summary (Charlotin AI Hallucination Cases DB) |
| Nguyen v. Savage Enterprises | E.D. Arkansas | USA | — | 2025-03-03 | Implied | Monetary sanction | 1000 USD | Case summary (Charlotin AI Hallucination Cases DB) |
| Evans v. Execushield, Inc. | California SC | USA | — | 2025-03-10 | Unidentified | Order to Notify Client; No fee available for Counsel in this case | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Arnaoudoff v. Tivity Health Incorporated | D. Arizona | USA | — | 2025-03-11 | ChatGPT | Court ignored fake citations and granted motion to correct the record | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Mark Lillard v. Offit Kurman, P.A. | SC Delaware | USA | — | 2025-03-12 | Unidentified | AI-use certification required for future filings | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| A v. B | Florence | Italy | — | 2025-03-13 | ChatGPT | No financial sanction; Formal Judicial Reprimand; Findings of procedural misuse | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Reddan & An Bord Pleanála v. Trustees of Nenagh Golf Club | — | Ireland | — | 2025-03-13 | Unidentified | Application for Judicial Review Denied; Express Judicial Rebuke for Misuse of AI | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| LMN v. STC (No. 2) | — | New Zealand | — | 2025-03-17 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Williams v. Capital One Bank | D. DC | USA | — | 2025-03-18 | CoCounsel | Case dismissed with prejudice for failure to state a claim. No monetary sanction imposed, but the court issued a formal warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Buckner v. Hilton Global | W.D. Kentucky | USA | — | 2025-03-21 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Loyer v. Wayne County Michigan | E.D. Michigan | USA | — | 2025-03-21 | Unidentified | Plaintiff's counsel ordered to attend an ethics seminar | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Kruglyak v. Home Depot U.S.A., Inc. | W.D. Virginia | USA | — | 2025-03-25 | ChatGPT | No monetary sanctions; Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| LYJ v. Occupational Therapy Board of Australia | Queensland | Australia | — | 2025-03-26 | ChatGPT | No sanction; Fabrication noted; Warning issued regarding AI use | None reported | Source (naturalandartificiallaw.com) |
| AQ v. BT | CRT | Canada | — | 2025-03-28 | Implied | Arguments ignored | None reported | Source (decisions.civilresolutionbc.ca) |
| McKeown v. Paycom Payroll LLC | W.D. Oklahoma | USA | — | 2025-03-31 | Implied | Submission stricken out, and warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Sanders v. USA | Fed. claims court | USA | — | 2025-03-31 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| SQBox Solutions Ltd. v. Oak | BC Civil Resolution Tribunal | Canada | — | 2025-03-31 | Implied | Litigant lost on merits | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Boggess v. Chamness | E.D. Texas | USA | — | 2025-04-01 | Implied | Argument ignored | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Dehghani v. Castro | D. New Mexico | USA | — | 2025-04-02 | Unidentified | Monetary sanction; required CLE on legal ethics and AI; mandatory self-reporting to NM and TX state bars; report of subcontractor to NY state bar; required notification to LAWCLERK | 1500 USD | Case summary (Charlotin AI Hallucination Cases DB) |
| Mazurek et al. v. Thomazoni | Parana State | Brazil | — | 2025-04-02 | ChatGPT | Referral to the bar; Monetary fine (1% of case value) | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Ayinde v. Borough of Haringey | High Court | UK | — | 2025-04-03 | Unidentified | Wasted costs order; Partial disallowance of Claimant’s costs; Order to send transcript to Bar Standards Board and Solicitors Regulation Authority | 11000 GBP | Case 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.