The problem, in numbers
Court cases involving fake citations, 2023–2026 2,041 (as of 14 Sept 2026)
New cases per day, mid-2026 about 8
Largest single penalty so far about $110,000
Fake citations named in the 30 orders we tested 64
— invented case 34
— real case, wrong address 14
— real case, invented quote 16
Of those 64, the kind an “is it real?” check can catch 34
What the usual check misses, and what Cite11 caught
Type of fake citation The usual check: “does the case exist?” Cite11, in this test
Invented case Catches it Caught 22 of 22
Real case, wrong address Misses it — the case exists Caught 8 of 9
Real case, invented quote Misses it — the case exists Not yet tested
These numbers describe the test runs, as of the run date. Cite11 has changed since: a report now says “Belongs to a different case” where this page says “Address mismatch”, checks a quotation attached to a citation, and searches Westlaw and Lexis-numbered decisions in the docket archive. The results here were not re-run.
And on the other side of the ledger: of 65
real citations in the same filings, Cite11 confirmed 51, said
“can't check” on 13, and warned in error on 1. In our test (Run 9, October 16,
2026), it marked 0 of 81 fabricated citations as real.
Three other citation checkers are on the
market — CiteCheck AI, CiteSentinel, GroundTruth. None has published test
results.
Where the 136 came from
Damien Charlotin's
public database
lists 2,041 court cases involving AI-fabricated citations as of 14 September 2026. Most
orders say “counsel cited nonexistent cases” without listing them.
Thirty-five name the citations in writing; thirty could be checked against the order's
own text. That gave 136 citations, each carrying the judge's finding.
Source: AI Hallucination Cases Database,
Damien Charlotin, https://www.damiencharlotin.com/hallucinations/
— licensed CC BY 4.0 .
The one miss (out of 48)
Citation as filed What Cite11 said Why
Menocal — a bare name, no reporter
Could not be checked
Nothing to look up. Cite11 won't guess at a lone word.
See all 136 →
The one false warning
Citation as filed What Cite11 said Why
Malkeet Lnu v. Blanche , 177 F.4th 1014 — not yet in CourtListener
Not found
Too recent for the public index.
See all 136 →
What wasn't tested
Fifteen invented quotations, because the test sentences carried no
quoted text. Seventeen fake and seven real citations were Westlaw or LEXIS numbers or
very recent opinions, which are not in the public record; Cite11
reported “outside coverage” rather than guess (as of the run date; such decisions are now searched
and reported as not confirmed). Four real citations were not checked.
Every citation we tested
136 citations, grouped by the order they came from, each with the
court's finding and Cite11's result.
Expand all
Mata v. Avianca, Inc
S.D. New York · 2023-06-22 · 9 citations
Citation as filed What the court found What Cite11 reported Match or miss
Varghese v. China Southern Airlines Co., Ltd., 925 F.3d 1339 (11th Cir. 2019)
Invented case
Not found
Match
Shaboon v. Egyptair, 2013 IL App (1st) 111279-U (Ill. App. Ct. 2013)
Invented case
Not found
Match
Peterson v. Iran Air, 905 F. Supp. 2d 121 (D.D.C. 2012)
Invented case
Address mismatch
Match
Martinez v. Delta Airlines, Inc., 2019 WL 4639462 (Tex. App. Sept. 25, 2019)
Invented case
Outside coverage
Not tested
Estate of Durden v. KLM Royal Dutch Airlines, 2017 WL 2418825
Invented case
Outside coverage
Not tested
Miller v. United Airlines, Inc., 174 F.3d 366, 371-72 (2d Cir. 1999)
Invented case
Address mismatch
Match
Muhammad v. Walmart Stores East, L.P., 732 F.3d 104, 108 (2d Cir. 2013)
Real citation
Verified
Match
Cooter & Gell v. Hartmax Corp., 496 U.S. 384, 398 (1990)
Real citation
Verified
Match
Fishoff v. Coty Inc., 634 F.3d 647, 654 (2d Cir. 2011)
Real citation
Verified
Match
Ex Parte Lee
Texas CA · 2023-07-19 · 4 citations
Citation as filed What the court found What Cite11 reported Match or miss
Ex parte Vasquez, 248 S.W.3d 454 (Tex. Crim. App. 2008)
Real case, wrong address
Address mismatch
Match
Ex parte Clayton, 592 S.W.2d 494 (Tex. Crim. App. 1979)
Real case, wrong address
Address mismatch
Match
Ex parte Martinez, 340 S.W.3d 642 (Tex. Crim. App. 2011)
Real case, wrong address
Address mismatch
Match
Neville v. State, 622 S.W.3d 99, 104 (Tex. App.—Waco 2020, no pet.)
Real citation
Outside coverage
Not tested
Frier v. Hingiss
E.D. Wisconsin · 2023-09-15 · 4 citations
Citation as filed What the court found What Cite11 reported Match or miss
Ratzlaf v. Nordstrom, Inc., 968 F.2d 946, 950 (7th Cir. 1992)
Real case, wrong address
Address mismatch
Match
Palka v. City of Chicago, 662 F.3d 428 (7th Cir. 2011)
Real case, invented quote
Verified
Not tested
King v. Ill. State Bd. of Elections, 410 F.3d 404, 423 (7th Cir. 2005)
Real citation
Verified
Match
Mars Steel Corp. v. Cont’l Bank N.A., 880 F.2d 928, 938 (7th Cir. 1989)
Real citation
Verified
Match
Zachariah Crabill Disciplinary Case
Colorado SC · 2023-11-21 · 1 citation
Citation as filed What the court found What Cite11 reported Match or miss
In re Fisher, 202 P.3d 1186, 1202 (Colo. 2009)
Real citation
Verified
Match
Matter of Samuel
CC New York · 2024-01-11 · 1 citation
Citation as filed What the court found What Cite11 reported Match or miss
Matter of Rottkamp, 95 AD3d 1338, 1339-1340 [2d Dept 2012]
Real citation
Verified
Match
Park v. Kim
2nd Cir. · 2024-01-30 · 2 citations
Citation as filed What the court found What Cite11 reported Match or miss
Matter of Bourguignon v. Coordinated Behavioral Health Servs., Inc., 114 A.D.3d 947 (3d Dep’t 2014)
Invented case
Address mismatch
Match
Wolters Kluwer Fin. Servs., Inc. v. Scivantage, 564 F.3d 110, 113 (2d Cir. 2009)
Real citation
Verified
Match
In re Thomas Grant Neusom
M.D. Florida · 2024-03-08 · 2 citations
Citation as filed What the court found What Cite11 reported Match or miss
Cooter & Gell v. Hartmarx Corp., 496 U.S. 384, 395 (1990)
Real citation
Verified
Match
Law Sols. of Chicago LLC v. Corbett, 971 F.3d 1299, 1316 (11th Cir. 2020)
Real citation
Verified
Match
Michael Cohen Matter
S.D.N.Y. · 2024-03-20 · 4 citations
Citation as filed What the court found What Cite11 reported Match or miss
United States v. Figueroa-Florez, 64 F.4th 223 (2d Cir. 2022)
Invented case
Not found
Match
United States v. Ortiz, (No. 21-3391), 2022 WL 4424741 (2d Cir. Oct. 11, 2022)
Invented case
Outside coverage
Not tested
United States v. Amato, 2022 WL 1669877 (2d Cir. May 10, 2022)
Invented case
Outside coverage
Not tested
United States v. Lussier, 104 F.3d 32, 35 (2d Cir. 1997)
Real citation
Verified
Match
Grant v. City of Long Beach
9th Cir. · 2024-03-22 · 5 citations
Citation as filed What the court found What Cite11 reported Match or miss
Smith v. City of Oakland, 731 F.3d 1222, 1231 (11th Cir. 2013)
Invented case
Address mismatch
Match
Jones v. Williams, 791 F.2d 1024 (9th Cir. 1986)
Invented case
Address mismatch
Match
Hydrick v. Hunter, 669 F.3d 937 (9th Cir. 2012)
Real citation
Verified
Match
Wall v. County of Orange, 364 F.3d 1107 (9th Cir. 2004)
Real citation
Verified
Match
Sekiya v. Gates, 508 F.3d 1198, 1200 (9th Cir. 2007)
Real citation
Verified
Match
Rasmussen v. Rasmussen
California · 2024-08-23 · 3 citations
Citation as filed What the court found What Cite11 reported Match or miss
Kerrigan v. O’Meara, (1926) 71 Cal.App. 346
Invented case
Address mismatch
Match
Dino v. Pelliccioni, (1962) 200 Cal.App.2d 163, 170
Real case, wrong address
Address mismatch
Match
Cummings v. Dessel, (2017) 13 Cal.App.5th 589
Real citation
Verified
Match
USA v. Michel
D.D.C. · 2024-08-30 · 3 citations
Citation as filed What the court found What Cite11 reported Match or miss
Strickland v. Washington, 466 U.S. 668
Real citation
Verified
Match
United States v. Cronic, 466 U.S. 648
Real citation
Verified
Match
Hemphill v. New York, 595 U.S. 140
Real citation
Verified
Match
Iovino v. Michael Stapleton Associates, Ltd.
W.D. Virginia · 2024-10-10 · 6 citations
Citation as filed What the court found What Cite11 reported Match or miss
United Therapeutics Corp. v. Watson Labs, Inc., 2017 WL 2483620
Invented case
Outside coverage
Not tested
United States v. Mosby, 2021 WL 2827893
Invented case
Outside coverage
Not tested
Menocal, 113 F. Supp. 3d 1125
Real case, wrong address
Could not be checked
Miss
Graves v. Lioi, 930 F.3d 307
Real case, invented quote
Verified
Not tested
Bostock v. Clayton Cnty., 590 U.S. 644
Real case, invented quote
Verified
Not tested
Mescall v. Renaissance at Antiquity, 2023 WL 7490841
Real citation
Outside coverage
Not tested
Matter of Weber
CC New York · 2024-10-10 · 2 citations
Citation as filed What the court found What Cite11 reported Match or miss
Frye v. United States, 293 F. 1013
Real citation
Verified
Match
People v. Wakefield, 38 NY3d 367
Real citation
Outside coverage
Not tested
Thomas v. Commissioner of Internal Revenue
US Tax Court · 2024-10-23 · 4 citations
Citation as filed What the court found What Cite11 reported Match or miss
Schluter v. Commissioner, T.C. Memo 1998-269
Real case, wrong address
Outside coverage
Not tested
Meneguzzo v. Commissioner, T.C. Memo 1969-15
Real case, wrong address
Outside coverage
Not tested
Gagliardi v. Commissioner, T.C. Memo 2011-194
Real case, wrong address
Address mismatch
Match
Dynamo Holdings L.P. v. Commissioner, 143 T.C. 183
Real citation
Verified
Match
Mortazavi v. Booz Allen Hamilton, Inc.
C.D. California · 2024-10-30 · 4 citations
Citation as filed What the court found What Cite11 reported Match or miss
Hudson v. Moore Bus. Forms, Inc., 836 F.2d 1156
Real citation
Verified
Match
Ayers v. City of Richmond, 895 F.2d 1267
Real citation
Verified
Match
Bus. Guides, Inc. v. Chromatic Commc'ns Enterprises, Inc., 498 U.S. 533
Real citation
Verified
Match
Yagman v. Republic Ins., 987 F.2d 622
Real citation
Verified
Match
Berry v. Stewart
D. Kansas · 2024-11-14 · 1 citation
Citation as filed What the court found What Cite11 reported Match or miss
Hogan v. Allstate Insurance Co., 2020 WL 1882334
Invented case
Outside coverage
Not tested
Gauthier v. Goodyear Tire & Rubber Co.
E.D. Texas · 2024-11-25 · 11 citations
Citation as filed What the court found What Cite11 reported Match or miss
Roca v. King's Creek Plantation, LLC, 500 F. App'x 273
Invented case
Address mismatch
Match
Beets v. Texas Instruments, Inc., 1994 WL 714026
Invented case
Outside coverage
Not tested
Morales v. SimuFlite Training Int'l, Inc., 132 S.W.3d 603
Real case, invented quote
Verified
Not tested
White v. FCI USA, Inc., 319 F.3d 672
Real case, invented quote
Verified
Not tested
Burton v. Freescale Semiconductor, Inc., 798 F.3d 222
Real case, invented quote
Verified
Not tested
Texas Dep't of Human Servs. v. Hinds, 904 S.W.2d 629
Real case, invented quote
Verified
Not tested
Physio GP, Inc. v. Naifeh, 306 S.W.3d 886
Real case, invented quote
Verified
Not tested
City of Midland v. O'Bryant, 18 S.W.3d 209
Real case, invented quote
Verified
Not tested
Park v. Kim, 91 F.4th 610
Real citation
Verified
Match
Mata v. Avianca, Inc., 678 F. Supp. 3d 443
Real citation
Outside coverage
Not tested
Iovino v. Michael Stapleton Assocs., Ltd., 2024 WL 3520170
Real citation
Outside coverage
Not tested
Kohls v. Ellison
D. Minnesota · 2025-01-10 · 4 citations
Citation as filed What the court found What Cite11 reported Match or miss
Daubert v. Merrell Dow Pharms., Inc., 509 U.S. 579
Real citation
Verified
Match
Acosta v. Mezcal, Inc., 2019 WL 2550660
Real citation
Outside coverage
Not tested
In re World Trade Ctr. Disaster Site Litig., 722 F.3d 483
Real citation
Verified
Match
Morgan v. Cmty. Against Violence, 2023 WL 6976510
Real citation
Outside coverage
Not tested
Gonzalez v. Texas Taxpayers and Research Association
W.D. Texas · 2025-01-29 · 8 citations
Citation as filed What the court found What Cite11 reported Match or miss
Bloomberg L.P. v. Bd. of Govs. of the Fed. Reserve Sys., 649 F. 3d 651
Invented case
Not found
Match
Hogan v. AT&T, Inc., 917 F. Supp. 1275
Invented case
Address mismatch
Match
Head v. Chicora Life Ctr., LLC, 290 F. Supp. 3d 883
Invented case
Address mismatch
Match
Cruz v. Aramark Servs., Inc., 213 F. Supp. 2d 135
Real case, wrong address
Address mismatch
Match
TIG Ins. Co. v. Carter, 640 S.W. 2d 232
Real case, wrong address
Address mismatch
Match
Chambers v. NASCO, 501 U.S. 32
Real citation
Verified
Match
Crowe v. Smith, 151 F.3d 217
Real citation
Verified
Match
Edwards v. General Motors Corp., 153 F.3d 242
Real citation
Verified
Match
Wadsworth v. Walmart (Morgan & Morgan)
D. Wyoming · 2025-02-24 · 4 citations
Citation as filed What the court found What Cite11 reported Match or miss
Collins v. Daniels, 916 F.3d 1302
Real citation
Verified
Match
Mata v. Avianca, Inc., 678 F. Supp. 3d 443
Real citation
Outside coverage
Not tested
Williams v. The Ests. LLC, 663 F. Supp. 3d 466
Real citation
Could not be checked
Not tested
In re Keegan Mgmt. Co., Sec. Litig., 78 F.3d 431
Real citation
Verified
Match
Bunce v. Visual Technology Innovations (1)
E.D. Pennsylvania · 2025-02-27 · 8 citations
Citation as filed What the court found What Cite11 reported Match or miss
McNally v. Eyeglass World, LLC, 897 F. Supp. 2d 1067
Invented case
Address mismatch
Match
Behm v. Lockheed Martin Corp., 460 F.3d 860
Invented case
Address mismatch
Match
Degen v. United States, 517 U.S. 820
Real citation
Verified
Match
Dow Chemical Canada Inc. v. HRD Corp., 259 F.R.D. 81
Real citation
Verified
Match
Eavenson, Auchmuty Greenwald v. Holtzman, 775 F.2d 535
Real citation
Verified
Match
Gaiardo v. Ethyl Corp., 835 F.2d 479
Real citation
Verified
Match
Comuso v. Nat'l R.R. Passenger Corp., 267 F.3d 331
Real citation
Verified
Match
Cunningham v. Hamilton Cnty., Ohio, 527 U.S. 198
Real citation
Verified
Match
Dehghani v. Castro
D. New Mexico · 2025-04-02 · 9 citations
Citation as filed What the court found What Cite11 reported Match or miss
Moncada v. Ruiz, 518 F. Supp 3d 708 (D.N.M. 2021)
Invented case
Not tested — not extracted from the source text
Not tested
Vega-Mendoza v. Homeland Security, 382 F. Supp 3d 1209 (D.N.M. 2019)
Invented case
Not tested — not extracted from the source text
Not tested
Morales v. ICE Field Office Director, 541 F. Supp 3d 1154 (D.N.M. 2021)
Invented case
Not tested — not extracted from the source text
Not tested
Meza v. United States Attorney General, 130 F. Supp. 3d 1052 (N.D. Tex. 2015)
Invented case
Address mismatch
Match
Hernandez v. Sessions, 298 F. Supp. 3d 1366 (D.N.M. 2018)
Invented case
Address mismatch
Match
Ramirez v. DHS, 338 F. Supp. 3d 1 (D.N.M. 2020)
Invented case
Address mismatch
Match
Adamson v. Bowen, 855 F.2d 668, 672 (10th Cir. 1988)
Real citation
Verified
Match
Mata v. Avianca, Inc., 678 F. Supp. 3d 443, 461 (S.D.N.Y. 2023)
Real citation
Outside coverage
Not tested
Wadsworth v. Walmart Inc., 2025 WL 608073, at *4 (D. Wyo. Feb. 24, 2025)
Real citation
Outside coverage
Not tested
Bevins v. Colgate-Palmolive Co.
E.D. Pennsylvania · 2025-04-10 · 4 citations
Citation as filed What the court found What Cite11 reported Match or miss
Tinch v. Video Indus. Servs., Inc., No. 1712 EDA 2018, 2019 WL 1396975, at *3 (Pa. Super. Ct. Mar. 27, 2019)
Real case, wrong address
Outside coverage
Not tested
Burton v. Danek, No. 95-5560, 1997 WL 436713, at *8 (E.D. Pa. July 31, 1997)
Real case, wrong address
Outside coverage
Not tested
Bell Atl. Corp. v. Twombly, 550 U.S. 544, 570 (2007)
Real citation
Verified
Match
Napier v. Thirty or More Unidentified Fed. Agents, Emps. or Officers, 855 F.2d 1080, 1091 (3d Cir. 1988)
Real citation
Could not be checked
Not tested
Benjamin v. Costco Wholesale Corp
E.D. New York · 2025-04-24 · 7 citations
Citation as filed What the court found What Cite11 reported Match or miss
Klein v. E. I. Du Pont de Nemours & Co., 406 F.2d 1004, 1006 (2d Cir. 1969)
Invented case
Address mismatch
Match
Gordon v. N.Y. Cent. R.R. Co., 202 F. Supp. 2d 290, 292 (W.D.N.Y. 2002)
Invented case
Address mismatch
Match
Mitchell v. JCG Industries, 2010 WL 11627832, at *3 (N.D. Ill. Dec. 1, 2010)
Invented case
Outside coverage
Not tested
Hollander v. Sweeney, 2005 WL 19904045, at *3 (S.D. Ind. Aug. 17, 2005)
Invented case
Outside coverage
Not tested
Davis v. S. Farm Bureau Cas. Inc. Co., 2019 WL 3452601, at *2 (W.D. Ark. July 31, 2019)
Invented case
Outside coverage
Not tested
Park v. Kim, 91 F.4th 610, 614 (2d Cir. 2024)
Real citation
Verified
Match
Mata v. Avianca, Inc., 678 F. Supp. 3d 443, 459 (S.D.N.Y. 2023)
Real citation
Outside coverage
Not tested
Flowz Digital LLC v. Caroline Dalal
C.D. California · 2025-05-05 · 3 citations
Citation as filed What the court found What Cite11 reported Match or miss
Shell Petroleum N.V. v. Republic of Costa Rica, 608 F. Supp. 2d 269 (S.D.N.Y. 2009)
Invented case
Address mismatch
Match
In re Daou Systems, Inc., 411 F.3d 1006 (9th Cir. 2005)
Real citation
Verified
Match
S.E.C. v. Cross Financial Services, Inc., 908 F. Supp. 718 (C.D. Cal. 1995)
Real citation
Verified
Match
Lacey v. State Farm General Insurance
C.D. California · 2025-05-06 · 4 citations
Citation as filed What the court found What Cite11 reported Match or miss
Booth v. Allstate Ins. Co., 198 Cal.App.3d 1357, 1366 (1989)
Invented case
Outside coverage
Not tested
National Steel Products Co. v. Superior Court, 164 Cal.App.3d 476, 489 (1985)
Real case, invented quote
Verified
Not tested
Chambers v. NASCO, Inc., 501 U.S. 32, 46-47 (1991)
Real citation
Verified
Match
Fink v. Gomez, 239 F.3d 989, 994 (9th Cir. 2001)
Real citation
Verified
Match
Capital Standard, LLC v. U.S. Bank National Association
Florida Court of Appeal (2d DCA) · 2026-08-21 · 6 citations
Citation as filed What the court found What Cite11 reported Match or miss
Board of Regents v. Wilson, 365 So. 2d 213 (Fla. 1st DCA 1979)
Invented case
Address mismatch
Match
Maciejewski v. Holland, 441 So. 2d 703 (Fla. 2d DCA 1983)
Real case, invented quote
Verified
Not tested
Hart Properties, Inc. v. Slack, 159 So. 2d 236, 239 (Fla. 1963)
Real case, invented quote
Verified
Miss
Miami Country Day School v. Bakst, 641 So. 2d 467 (Fla. 3d DCA 1994)
Real case, invented quote
Verified
Not tested
Gonzalez v. Deutsche Bank National Trust Co., 95 So. 3d 251 (Fla. 2d DCA 2012)
Real case, invented quote
Verified
Not tested
Malkeet Lnu v. Blanche, 177 F.4th 1014, 1024 (9th Cir. 2026)
Real citation
Not found
Miss
Michael L. Ruiz v. Magellan Financial & Insurance Services
D. Arizona · 2026-08-24 · 4 citations
Citation as filed What the court found What Cite11 reported Match or miss
Antonakeas, (Ninth Circuit case, full citation withheld by court)
Real case, invented quote
Not tested — citation withheld by the court
Not tested
Osazuwa, (Ninth Circuit case, full citation withheld by court)
Real case, invented quote
Not tested — citation withheld by the court
Not tested
Ansell v. Green Acres Contracting Co., 347 F.3d 515 (3d Cir. 2003)
Real citation
Verified
Match
In re Girardi, 611 F.3d 1027, 1038 (9th Cir. 2010)
Real citation
Verified
Match
Adams v. Matrix Providers Inc. et al.
D. Colorado · 2026-08-27 · 3 citations
Citation as filed What the court found What Cite11 reported Match or miss
Ricks v. Starbucks, No. 21-cv-01386, 2023 WL 8872476, at *6 (D. Colo. Dec. 22, 2023)
Real case, wrong address
Outside coverage
Not tested
Tabura v. Kellogg USA, 880 F.3d 544, 549 (10th Cir. 2018)
Real citation
Verified
Match
Servants of the Paraclete v. Does, 204 F.3d 1005, 1012 (10th Cir. 2000)
Real citation
Verified
Match
Douglas v. Deutsche Bank National Trust Company
D.C. Court of Appeals · 2026-09-03 · 6 citations
Citation as filed What the court found What Cite11 reported Match or miss
Abadie v. District of Columbia, Abadie v. District of Columbia
Invented case
Not tested — citation withheld by the court
Not tested
Cason v. Nat'l Consumer Co-op Bank, Cason v. Nat'l Consumer Co-op Bank
Invented case
Not tested — citation withheld by the court
Not tested
Osborne v. District of Columbia, Osborne v. District of Columbia
Invented case
Not tested — citation withheld by the court
Not tested
Woods v. United States, Woods v. United States
Invented case
Not tested — citation withheld by the court
Not tested
Grant v. City of Long Beach, 96 F.4th 1255, 1256-57 (9th Cir. 2024)
Real citation
Verified
Match
United States v. Jones, 744 F.3d 1362, 1370 n.2 (D.C. Cir. 2014)
Real citation
Verified
Match
The bottom line
A citation can be wrong in three ways: the case doesn't exist, the case
exists but the number points somewhere else, or the case exists but the quoted words
aren't in it. The first is easy to catch. The other two pass the “does it
exist?” check every time, and they are now most of what courts are sanctioning.
Cite11 checks all three against the public court record and tells
you, for each citation, which one it found — or that it couldn't check. On the
citations judges have already ruled on, it has never called a fake one real, it caught
all but one it could see, and it warned about one real citation in sixty-one. That is what
a Verification Report certifies: not that your brief is right, but that every citation
in it was checked, dated, and numbered before you signed.