Legal professionals
Afectado por Incidentes
Incidente 7042 Reportes
Study Highlights Persistent Hallucinations in Legal AI Systems
2024-05-23
Stanford University’s Human-Centered AI Institute (HAI) conducted a study in which they designed a "pre-registered dataset of over 200 open-ended legal queries" to test AI products by LexisNexis (creator of Lexis+ AI) and Thomson Reuters (creator of Westlaw AI-Assisted Research and Ask Practical Law AI). The researchers found that these legal models hallucinate in 1 out of 6 (or more) benchmarking queries.
MásIncidents involved as Deployer
Incidente 7042 Reportes
Study Highlights Persistent Hallucinations in Legal AI Systems
2024-05-23
Stanford University’s Human-Centered AI Institute (HAI) conducted a study in which they designed a "pre-registered dataset of over 200 open-ended legal queries" to test AI products by LexisNexis (creator of Lexis+ AI) and Thomson Reuters (creator of Westlaw AI-Assisted Research and Ask Practical Law AI). The researchers found that these legal models hallucinate in 1 out of 6 (or more) benchmarking queries.
MásIncidente 15711 Reporte
California Immigration Attorneys Reportedly Sanctioned Over Briefs Containing Probable Hallucinations in LNU v. Blanche
2025-10-20
California immigration attorneys Mike Singh Sethi and William Rounds were reportedly sanctioned in LNU v. Blanche after Ninth Circuit filings included purportedly fabricated and materially inaccurate legal authorities. The court said unauthorized generative AI use by unlicensed brief writers was probable and found that the attorneys failed to verify the filings and repeatedly lacked candor about the errors' source.
MásIncidente 15721 Reporte
Westlaw CoCounsel Reportedly Generated False Legal Quotations in United States v. Farris
2025-10-21
In United States v. Farris, court-appointed attorney Steven N. Howe admitted using Westlaw CoCounsel to draft appellate briefs that reportedly included AI-generated false quotations and misleading descriptions of precedent. The filing disrupted Farris's appeal, leading the court to appoint new counsel and restart briefing, while Howe lost his compensation and faced possible disciplinary action.
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