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
Case screener
AI-related case
Fabricated: Case Law | Filed a phantom/non-existent case citation in briefing (identified at hearing and in show-cause response). Court and opposing counsel flagged it as fake and potentially AI-generated. || False Quotes: Case Law | Misattributed language from a 2020 Supreme Court decision to Justice Scalia (who had died before 2020).
Judges: Charlotte Noelle Sweeney
AI-related case
Fabricated: Case Law | Plaintiff cited this authority in her response; Court determined the case does not exist (AI-generated hallucination). || Fabricated: Case Law | Plaintiff cited this authority in her response; Court determined the case does not exist (AI-generated hallucination). || Fabricated: Case Law | Plaintiff cited this authority in her response; Court determined the case does not exist (AI-generated hallucination). || Fabricated: Case Law | Plaintiff cited this authority in her response; Court determined the case does not exist (AI-generated hallucination). || Fabricated: Case Law | Plaintiff cited this authority in her response; Court determined the case does not exist (AI-generated hallucination). || Fabricated: Case Law | Plaintiff cited this authority in her response; Court determined the case does not exist (AI-generated hallucination). || Fabricated: Case Law | Plaintiff cited this authority in her response; Court determined the authority could not be located and does not exist (AI-generated hallucination). || Misrepresented: Case Law | Plaintiff misattributed or inaccurately quoted language from cited cases and misrepresented associated legal concepts; Court no…
Judges: Kathryn A Starnella
AI-related case
Fabricated: Case Law | Plaintiff cited a non-existent case (identified by the court as fabricated). || Misrepresented: Case Law | Plaintiff attributed the opposite holding to a real case; court identified the mischaracterization.
Judges: Daniel Desmond Domenico
AI-related case
False Quotes: Case Law | The Court found that counsel included a quotation purportedly from Miller v. Spiers that does not exist in the opinion and noted the citation appears to be fabricated.
Judges: William Joseph Martinez
AI-related case
Fabricated: Case Law | Plaintiff's reply brief relied on a fictional, AI-generated case; opposing counsel raised the issue in a surreply; plaintiff admitted the error and apologized; court declined to strike the motion but issued a warning about future hallucinated citations.
Judges: Susan Prose
AI-related case
Misrepresented: Case Law | Plaintiff cited Sterling v. Velsicol Chem. Corp. as '855 P.2d 1188' and as a Colorado court decision; the Court noted the correct reporter and that Sterling is 855 F.2d 1188 (Sixth Circuit), not a Colorado decision. || False Quotes: Case Law | Plaintiff attributed a quotation warning against dismissals that would 'strip a court of its ability to afford complete relief' to Citizen Center v. Gessler; the Court found that language does not appear in Gessler. || Misrepresented: Case Law | Plaintiff cited Harris v. Sand Canyon Corp. using an apparently fabricated or incorrect Westlaw-style citation that does not match the case or proposition relied upon.
Judges: Maritza Dominguez Braswell
AI-related case
The court identified citations to seemingly nonexistent cases in the plaintiff's filings (e.g., "Hernandez" and "United States v. Miller"), noted prior warnings about AI-generated or unvetted citations, denied the motions, and warned it may recommend dismissal or similar sanctions if the conduct continues.
Judges: Susan Prose
AI-related case
Fabricated: Case Law | Defendant cited a non-existent Tenth Circuit decision 'Hinzo v. State of N.M., 79 F.4th 1164, 1175 (10th Cir. 2023)'; the court determined that citation is non-existent and does not support the argument. || False Quotes: Case Law | Defendant quoted language purportedly from Nikwei v. Ross Sch. of Aviation, Inc. (822 F.2d 939) that the court found does not appear in Nikwei; the court noted the wording likely originates from Aetna Business Credit, Inc., 635 F.2d 434, 435 (5th Cir. 1981).
Judges: Cyrus Y Chung
AI-related case
Order to Show Cause is here.
Judges: Kathryn A Starnella
AI-related case
Fabricated: Case Law | Plaintiff cited 'In re Subpoena to Coinbase, Inc., No. 17-MC-80244, 2018 WL 1898913, at *4 (N.D. Cal. Apr. 19, 2018)' to support delayed notice; the court found this cited opinion does not exist. || Fabricated: Case Law | Plaintiff cited 'In re Subpoena to Coinbase, Inc., 2023 WL 177977, at 2 (N.D. Cal. Jan. 12, 2023)'; the court could not locate this citation on Westlaw and noted only an unrelated CourtListener docket for 'In re: Coinbase, Inc.' (23-1779). || Misrepresented: Case Law | Plaintiff relied on Strike 3 Holdings, LLC v. Doe, 964 F.3d 1203 (D.C. Cir. 2020) as approving 'delayed notice' to prevent targets from knowing of subpoenas; the court observed Strike 3 contains no discussion of preventing a subpoena target from learning of the subpoena and therefore does not support plaintiff's proposition. || Misrepresented: Case Law | Plaintiff cited Hard Drive Productions, Inc., 809 F. Supp. 2d 1150 (N.D. Cal. 2011) as supporting nondisclosure/delayed notice; the court found Hard Drive authorized notice to subscribers (the opposite of delayed notice) and does not support plaintiff's position. || Misrepresented: Case Law | Plaintiff cited Arista Records LL…
Judges: Kathryn A Starnella