AI Abuse Court Cases
Search 1,395 source-linked cases involving fabricated citations and other AI-generated legal errors.
837 judge-case associations across 551 judges and 164 courts.
Source: Damien Charlotin
1,395Cases
837Judge-case associations
551Judges
164Courts
6 cases found · 10 maximum per page
AI-related case
Xinyue Hippe v. Retention Brands, LLC
U.S. District Court for the Eastern District of Wisconsin · Wisconsin · Jun 23, 2026
Misrepresented: Case Law | Sierra Club v. Franklin Cnty. Power of Ill. was cited to support that required accessibility fixes are 'modest in cost,' but the case concerns environmental permitting for a power plant and is unrelated to ADA or website accessibility. || Fabricated: Case Law | Plaintiff's counsel included entirely fabricated, nonexistent citations in paragraphs 16–17; court could not find cases supporting counsel's propositions and omitted the fabricated citations from the opinion. || Fabricated: Case Law | Citation(s) referencing a case involving 'Thrustmaster of America, Inc.' appear nonexistent; court found no federal case with that party. || Misrepresented: Case Law | Goodman v. Ill. Dep't of Fin. And Pro. Regul. was cited for the proposition that Title III of the ADA does not provide compensatory or punitive damages, but the case does not reference the ADA and does not support that proposition.
Judges: Lynn S. Adelman
AI-related case
Branden Driver v. CNA Financial Corporation et al.
U.S. District Court for the Eastern District of Wisconsin · Wisconsin · Jun 1, 2026
Fabricated: Case Law | Court identified multiple fabricated case citations generated by plaintiff's use of generative AI. || False Quotes: Case Law | Court identified fabricated quotes attributed to cases that do not exist. || Misrepresented: Case Law | Court identified misattributed quotes (quotations ascribed to the wrong cases) in the filings.
Judges: Pamela Pepper
AI-related case
SEC v. Joseph Nantomah et al.
U.S. District Court for the Eastern District of Wisconsin · Wisconsin · Jan 30, 2026
Fabricated: Case Law | Cited 'Goldberg v. 401 North Washakie Venture LLC, 155 F.3d 465 (7th Cir. 2014)'; court found the citation incorrect/nonexistent and noted 155 F.3d 465 corresponds to Condon v. Reno; court located a different Seventh Circuit Goldberg decision at 755 F.3d 456. || Fabricated: Case Law | Cited an unintelligible 'Johnson v. 2003 App. 242, 117, 652 N.W.2d 48 at 647' and a purported direct quote; court found the citation and quote unintelligible and noted the reporter '652 N.W.2d 48' corresponds to a Minnesota case (In re Silicone Implant Ins. Coverage Litig.). || Misrepresented: Case Law | Presented 'Sengry v. R.H. Love Galleries, Inc.' rather than the actual Stenger v. R.H. Love Galleries, Inc.; court identified this as a typographical/garbled citation. || Misrepresented: Case Law | Cited 'Hirk v. R-Arch-Roch. Council, Inc., 561 F.2d 619 (7th Cir. 1977)' in place of Hirk v. Agri-Research Council, Inc., 561 F.2d 96 (7th Cir. 1972); court noted the mismatch and garbling. || Misrepresented: Case Law | Cited 'Miriam M.S. Commodities Inc., 15 E.2d 724 (7th Cir. 1972)' instead of Milnarik v. M–S Commodities, Inc., 457 F.2d 274 (7th Cir. 1972); court noted the garbled…
Judges: Pamela Pepper
AI-related case
Gerou v. George, Whitten, and United States
U.S. District Court for the Eastern District of Wisconsin · Wisconsin · Dec 18, 2025
False Quotes: Case Law | Petitioners quoted Oates v. National Bank as stating banks 'may only deal in negotiable instruments and lawful money'; court found no such quote in Oates (100 U.S. 239 (1879)). || Misrepresented: Case Law | Petitioners attributed to National Bank v. Matthews a statement that banks 'cannot lend their credit to another'; court found the cited case (98 U.S. 621 (1878)) does not contain that statement. || Fabricated: Case Law | Petitioners cited 'Commercial Bank of Cleveland v. Ely (1853)'; court could not locate that case and found the similar Commercial Bank of Cleveland v. Iola, 154 U.S. 617 (1875) does not contain the quoted language. || Fabricated: Case Law | Petitioners repeatedly quoted 'Federal Reserve Bank of San Francisco v. United States (1919)'; court was unable to locate any case with that name or date. || Misrepresented: Case Law | Petitioners cited 'Glover v. Standard Oil Co., 65 N.E.2d 389 (Ind. 1946)' to support that an unrebutted affidavit stands as truth; court traced citation to a different reported opinion which does not support that proposition. || Misrepresented: Case Law | Petitioners cited Bank of Augusta v. Earle and Merchants' Bank v…
Judges: Pamela Pepper
AI-related case
Arajuo v. Wedelstadt et al
U.S. District Court for the Eastern District of Wisconsin · Wisconsin · Jan 22, 2025
AI UseCounsel admitted using a “new legal research medium”, appears to be a generative AI system or platform capable of generating fictitious case law. Counsel did not deny using AI, but claimed the system may have been corrupted or unreliable. The amended filing removed the false authorities.Hallucination DetailsThe court did not identify the specific fake cases but confirmed that “citations to non-existent cases” were included in Defendants’ original brief. Counsel’s subsequent filing corrected the record but did not explain how the citations passed into the brief in the first place.Ruling/SanctionJudge William Griesbach denied the motion for summary judgment on the merits, but addressed the citation misconduct separately. He cited Rule 11 and Park v. Kim (91 F.4th 610, 615 (2d Cir. 2024)) to underline the duty to verify. No formal sanctions were imposed, but counsel was explicitly warned that further use of non-existent authorities would not be tolerated.Key Judicial ReasoningThe court emphasized that even if the submission of false citations was not malicious, it was still a serious breach of Rule 11 obligations. Legal contentions must be “warranted by existing law,” and attor…
Judges: William C. Griesbach
AI-related case
Frier v. Hingiss
U.S. District Court for the Eastern District of Wisconsin · Wisconsin · Sep 15, 2023
False Quotes: Case Law | Counsel purported to quote language from Palka v. City of Chicago, but the Court found the cited language does not appear anywhere in that decision. || Fabricated: Case Law | Counsel cited 'Ratzlaf v. Nordstrom, Inc., 968 F.2d 946, 950 (7th Cir. 1992)', but the court found no Seventh Circuit case by that name and that the cited reporter page corresponds to a Ninth Circuit opinion (United States v. Derr).
Judges: Brett Harry Ludwig
