Case studies — AI citation sanctions in the wild

In-depth teardowns of the canonical AI-hallucinated-citation sanction cases. Public record only. Every quote, dollar figure, and holding tracks to a linked source.

Mata v. Avianca, Inc.
U.S. District Court, S.D.N.Y. (No. 22-cv-01461) · 2023-06-22 · $5,000 (joint and several — Steven A. Schwartz, Peter LoDuca, Levidow, Levidow & Oberman, P.A.)
Park v. Kim
U.S. Court of Appeals for the Second Circuit (No. 22-2057) · 2024-01-30 · No monetary penalty; formal referral of Jae S. Lee to the Court's Grievance Panel for disciplinary investigation, and public opinion identifying counsel by name.
Kruse v. Karlen
Missouri Court of Appeals, Eastern District (No. ED111172) · 2024-02-13 · $10,000 damages awarded to respondent Karlen for frivolous appeal, and appeal dismissed. Appellant Jonathan R. Karlen (pro se) sanctioned personally.
LiveVideo.AI Corp. v. Redstone
S.D. New York · 2026-06-09 · 80056 USD
In re Rosslyn2016, LLC, et al.
S.D. Texas (Bankruptcy) · 2026-07-14 · 29877 USD

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The full database is at /sanctions-database.