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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
- 1,902
- Courts covered
- 396
- 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.
1,295 cases match these filters · page 1 of 26
| Case | Court | Jurisdiction | Judge | Decided | AI tool | Outcome | Penalty | Source |
|---|---|---|---|---|---|---|---|---|
| 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) |
| 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) |
| 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) |
| 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) |
| Frier v. Hingiss | E.D. Wisconsin | USA | — | 2023-09-15 | Implied | Admonishment | 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) |
| 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) |
| 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) |
| 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) |
| Martin v. Taylor County | N.D. Texas | USA | — | 2024-03-06 | 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) |
| Novitzky v. Transunion LLC | C.D. California | USA | — | 2024-04-11 | Implied | Warning | 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) |
| 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) |
| 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) |
| 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) |
| 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) |
| USA v. Michel | D. DC | USA | — | 2024-08-30 | EyeLevel | Misattribution was irrelevant | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| Transamerica Life v. Williams | D. Arizona | USA | — | 2024-09-06 | Implied | Warning | 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) |
| 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) |
| 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) |
| 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) |
| 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) |
| 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) |
| 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) |
| 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) |
| Letts v. Avidien Technologies | E.D. North Carolina | USA | — | 2024-12-16 | Implied | Warning | None reported | Case summary (Charlotin AI Hallucination Cases DB) |
| 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) |
| Postma v. York | D. Iowa | USA | — | 2025-01-02 | Unidentified | Brief Struck; Warning | 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) |
| 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) |
| 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) |
| 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) |
| Pettit v. Allina Health System | D. Minnesotta | USA | — | 2025-01-30 | Implied | Monetary Sanction | 10000 USD | 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) |
| State v. Saher | CC Ohio | USA | — | 2025-02-11 | ChatGPT | Attorney asked to withdraw guilty plea | None reported | Source (cpdocket.cp.cuyahogacounty.gov) |
| 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) |
| 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) |
| 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) |
| 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) |
| 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) |
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.