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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
- 1,925
- Courts covered
- 398
- Cases with a reported penalty
- 351
- USD-denominated penalties
- $1,299,986
- across 193 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.
1,307 cases match these filters · page 27 of 27
| Case | Court | Jurisdiction | Judge | Decided | AI tool | Outcome | Penalty | Source |
|---|---|---|---|---|---|---|---|---|
| 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) |
| 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) |
| 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.