This annual report analyzes documented AI hallucination incidents across high-stakes domains — starting with legal, where consequences are most documented and publicly verified. The 2026 edition covers 1,450+ incidents across 25+ jurisdictions, with sanctions data, severity trends, model involvement analysis, and remediation patterns.
The report is the primary reference document for courts, regulators, bar associations, and journalists. Jurisdiction breakdowns, severity trends, and remediation patterns are all grounded in HalluCase registry data.
Pre-release data snapshot (Q1–Q3 2026):
- 1,450+ documented hallucination incidents globally
- $145,000+ in US court sanctions in Q1 alone
- 5–6 new incidents appearing daily across 10+ jurisdictions
- 9 hallucination type categories tracked with severity classification
- 25+ countries with reported incidents
The full report will be published in December 2026. Subscribe to our research mailing list for advance access.