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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
- 1,898
- Courts covered
- 393
- Cases with a reported penalty
- 349
- 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.
1,898 cases match these filters · page 38 of 38
| Case | Court | Jurisdiction | Judge | Decided | AI tool | Outcome | Penalty | Source |
|---|---|---|---|---|---|---|---|---|
| Crypto Open Patent Alliance v. Wright (1) | High Court | UK | — | 2024-12-06 | Unknown | No formal sanction; fabricated citations disregarded | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Carlos E. Gutierrez v. In Re Noemi D. Gutierrez | CA Florida (3d) | USA | — | 2024-12-04 | Unidentified | Appeals dismissed as sanction; Appellant barred from future pro se filings in related probate matters without attorney signature | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Rubio v. District of Columbia DHS | D. DC | USA | — | 2024-12-03 | Unidentified | Complaint dismissed with prejudice; no Rule 11 sanctions imposed, but clear judicial warning on AI misuse and citation verification duties | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Gauthier v. Goodyear Tire & Rubber Co. | E.D. Texas | USA | — | 2024-11-25 | Claude | Monetary fine + Mandatory AI-related CLE Course + Disclosure to Client | 2000 USD | Case summary (Charlotin AI Hallucination Cases DB) |
| Wikeley v Kea Investments Ltd | — | New Zealand | — | 2024-11-21 | Unidentified | Referred to guidance about AI | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Monster Energy Company v. Pacific Smoke International Inc. | Canadian Intellectual Property Office | Canada | — | 2024-11-20 | — | The fabricated citation was disregarded by the court. | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Berry v. Stewart | D. Kansas | USA | — | 2024-11-14 | Unidentified | At hearing, Counsel pledged to reimburse other side and his client | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Chan v. Khermani LLC | Wyoming Ch. | USA | — | 2024-11-14 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Kaur v RMIT | SC Victoria (CA) | Australia | — | 2024-11-11 | Implied | — | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| CARB 188903M-2024 (Calgary Assessment Review Board) | Calgary ARB | Canada | — | 2024-11-07 | Implied | — | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Rajabi c. Lassalle | TAL Montréal | Canada | — | 2024-11-01 | Implied | — | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Churchill Funding v. 732 Indiana | SC California | USA | — | 2024-10-31 | Implied | Order to show cause | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Mortazavi v. Booz Allen Hamilton, Inc. | C.D. California | USA | — | 2024-10-30 | Unidentified | $2,500 Monetary Sanction + Mandatory Disclosure to California State Bar | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Thomas v. Commissioner of Internal Revenue | US Tax Court | USA | — | 2024-10-23 | Implied | Pretrial Memorandum stricken | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Iovino v. Michael Stapleton Associates, Ltd. | W.D. Virginia | USA | — | 2024-10-10 | Claude, Westlaw, LexisNexis | No sanction, but hearing transcript sent to bar authorities | None reported | Source (law.justia.com) |
| Transamerica Life v. Williams | D. Arizona | USA | — | 2024-09-06 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| ATSJ NA 38/2024 | TSJ Navarra | Spain | — | 2024-09-04 | CHATGPT 3 | — | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| USA v. Michel | D. DC | USA | — | 2024-08-30 | EyeLevel | Misattribution was irrelevant | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Rasmussen v. Rasmussen | California | USA | — | 2024-08-23 | Implied | Lawyer ordered to show cause why she should not be referred to the bar | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Martin v. Hawai'i | D. Hawaii | USA | — | 2024-08-20 | Unidentified | Warning, and Order to file further submissions with Declaration | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| In re Dayal | — | Australia | — | 2024-08-19 | LEAP | Referral to the Victorian Legal Services Board and Commissioner for potential disciplinary review; no punitive order issued by the court itself; apology accepted. | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Nitzan v. Adar BaEmakim Properties Ltd. | Magistrate Court | Israel | — | 2024-08-13 | Implied | Matter referred to the Legal Department of the Court Administration | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Industria de Diseño Textil, S.A. v. Sara Ghassai | Canadian Intellectual Property Office | Canada | — | 2024-08-12 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Mr D Rollo v. Marstons Trading Ltd | Employment Tribunal | UK | — | 2024-08-01 | ChatGPT | Claim dismissed; AI material excluded from evidence under prior judicial order; no sanction but explicit judicial criticism | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Dukuray v. Experian Information Solutions | S.D. New York | USA | — | 2024-07-26 | Unidentified | No sanction; Formal Warning Issued | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Munchang Choi v. Lloyd’s Register Canada Limited | IRB | Canada | — | 2024-07-23 | Implied | Admonishment | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Anonymous v. NYC Department of Education | S.D. New York | USA | — | 2024-07-18 | Unidentified | No sanction; Formal Warning Issued | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Lakaev v McConkey | Supreme Court of Tasmania | Australia | — | 2024-07-12 | Implied | Appeal dismissed for want of prosecution | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| X BV in Z v. Tax Inspector | The Hague CA | Netherlands | — | 2024-06-26 | ChatGPT | Arguments rejected; No formal sanction but severe judicial criticism. | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Robert Lafayette v. Blueprint Basketball et al | Vermont SC | USA | — | 2024-04-26 | Implied | Order to Show Cause | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Novitzky v. Transunion LLC | C.D. California | USA | — | 2024-04-11 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Grant v. City of Long Beach | 9th Cir. CA | USA | — | 2024-03-22 | Unidentified | Striking of Brief + Dismissal of Appeal | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Martin v. Taylor County | N.D. Texas | USA | — | 2024-03-06 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Finch v The Heat Group | Family Court | Australia | — | 2024-02-27 | Implied | — | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Zhang v. Chen | BC Supreme Court | Canada | — | 2024-02-20 | ChatGPT | Claimant awarded costs | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Park v. Kim | 2nd. Cir. CA | USA | — | 2024-01-30 | ChatGPT | Referral to Grievance Panel + Order to Disclose Misconduct to Client. | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Matter of Samuel | CC New York | USA | — | 2024-01-11 | Unidentified | Striking of Filing + Sanctions Hearing Scheduled | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| In re Celsius Network LLC | S.D. New York (Bankruptcy) | USA | — | 2023-11-09 | Unidentified | Expert report excluded as unreliable | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Thomas v. Pangburn | S.D. Georgia | USA | — | 2023-10-06 | Unidentified | Dismissal of Case as Sanction for Bad Faith + Judicial Rebuke | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Frier v. Hingiss | E.D. Wisconsin | USA | — | 2023-09-15 | Implied | Admonishment | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Ruggierlo et al. v. Lancaster | E.D. Michigan | USA | — | 2023-09-11 | Unidentified | No sanction; Formal Judicial Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Ex Parte Lee | Texas CA | USA | — | 2023-07-19 | Unidentified | No sanction; Judicial Warning; Affirmance of Trial Court Decision | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Parker v. Forsyth NNO and Others | Magistrates' Court | South Africa | — | 2023-06-29 | ChatGPT | Plaintiff’s claim dismissed; punitive costs awarded on an attorney-and-client scale for specific period due to AI-generated hallucinated case law | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Mata v. Avianca, Inc | S.D. New York | USA | — | 2023-06-22 | ChatGPT | Monetary Fine (Lawyers & Firm); Letters to Client/Judges | 5000 USD | Court order (CourtListener) |
| Scott v. Federal National Mortgage Association | Maine Superior Court | USA | — | 2023-06-14 | Unidentified | Dismissal of Complaint + Sanctions (Attorney's Fees and Costs) | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Nº 0600814-85.2022.6.00.0000 | Tribunal Superior Eleitoral | Brazil | — | 2023-04-14 | ChatGPT | Monetary Sanction | 2604 BRL | Case summary (Charlotin AI Hallucination Cases DB) |
| BFF FINANCE IBERIA SAU v. Junta de Comunidades de Castilla-La Mancha | Tribunal Supremo | Spain | — | — | Implied | — | None reported | No source on file |
| Cheryl O’Donnell v. Hope Clough | SC Vermont | USA | — | — | Implied | Warning | None reported | 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.