| Canonical name | AI Hallucination Cases |
| Address | https://www.damiencharlotin.com/hallucinations/ |
| Operator | Damien Charlotin op |
| Founded | April 2025 (its maker's FAQ; Wikipedia's 'Hallucination (artificial intelligence)'); its decision-date filter begins in Q2 2023 op |
| Kind | database |
| Roles | monitoring, reception |
| Lifecycle | active |
| Observation | 2026-10-28: read |
| In its own words | “legal decisions in which a court or tribunal addresses AI use in more than a passing reference, where it finds or implies reliance on hallucinated material” op |
| Unit | legal decision op |
| Intake | editor-curated; readers send cases op |
| What it records per item | case and link to decision; court and jurisdiction; date; party using AI; AI tool; nature of hallucination (fabricated, false quotes, misrepresented, outdated advice); outcome and sanction; summary and reports op |
| Count | 2,231 cases (as of 2026-10-28 (the site's own update date)) op |
| Cadence | continuous op |
| Data access | CSV download obs |
| Licence | CC BY 4.0 op |
| Note | the database states it does not track 'the (necessarily wider) universe of all fake citations or use of AI in court filings'. Of its cases, 1,288 involve pro se litigants and 880 lawyers |
op operator statement · 3p third-party report · obs our observation · rd our reading
Its unit is the decision. A case enters when a court or tribunal addresses AI use in more than a passing reference and explicitly finds, or implies, reliance on hallucinated material. Mere allegations are excluded, with some judgment calls admitted. Each record carries the court, date, the party that used AI, the tool where named, the nature of the hallucination (fabricated, false quotes, misrepresented, outdated advice), and the outcome and sanction.
Of its cases, 1,288 involve pro se litigants and 880 lawyers. The period filter begins in the second quarter of 2023. The database grows by its editor's reading and by cases readers send.
It states its own boundary: it does not track "the (necessarily wider) universe of all fake citations or use of AI in court filings." A fabricated citation enters when a court catches and rules on it.
It is the census's most exact record of citation fidelity. Each entry is a machine composition that reached a court with sources it invented or misrepresented, and the court's decision is the reception that recorded it.
| Admission requires harm? | a court finding or implication of reliance on hallucinated material op |
| Records attribution? | yes: nature of hallucination (fabricated, false quotes, misrepresented, outdated advice) op |
Lee Sharks, ed. "AI Hallucination Cases." MMRS meta-aggregator, Machine-Mediated Reception Studies, compiled 2026-10-29. https://www.machinemediation.org/aggregators/ai-hallucination-cases/
Record https://www.machinemediation.org/aggregators/ai-hallucination-cases/ · entity https://www.machinemediation.org/aggregators/ai-hallucination-cases/#entity