HomeCasesBuchanan v. Vuori, Inc.

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Corpus matter record

Buchanan v. Vuori, Inc.

N.D. California · Nov 20, 2025

CA / federalEditorial impact: highfake citationsfabricated quotescontracttrial

Direct answer

What happened in this matter?

Fabricated: Case Law | The motion relies on a cited case that does not exist; Court's research found 2021 WL 4453429 is not a judicial opinion and no Reed v. ZipRecruiter opinion was located. Outcome: Monetary Sanction; Referral to the Bar; Motions stricken without leave to refile. Order to Show Cause is here.

Why the court cared: Fabricated: Case Law | The motion relies on a cited case that does not exist; Court's research found 2021 WL 4453429 is not a judicial opinion and no Reed v. ZipRecruiter opinion was located. || False Quotes: Case Law | Eight instances where the motion quotes language attributed to real cases but the quoted language does not appear in those cases (court identified specific ECF locations).
Why it matters now: Mixing consumer AI (ChatGPT/Claude) with paid tools (Westlaw/Lexis) still triggers bar referral — verify every cite against primary source.

Why this matter is tracked

Operational lesson

Mixing consumer AI (ChatGPT/Claude) with paid tools (Westlaw/Lexis) still triggers bar referral — verify every cite against primary source.

Record details

CaliforniaSingle-state evidence scope

Jurisdiction contextThe state marker is derived from the structured case record.

CourtN.D. California

Jurisdictionfederal

Circuit9th Circuit

DateNov 20, 2025

AI toolChatGPT-4, OpenAI, Claude, Clear Brief, Lexis Nexis & Westlaw

Party typeLawyer

OutcomeMonetary Sanction; Referral to the Bar; Motions stricken without leave to refile

Known amountNot recorded

Professional sanctionYes

Attribution boundary

What the record establishes about AI use

reported

ChatGPT-4, OpenAI, Claude, Clear Brief, Lexis Nexis & Westlaw is recorded in the source dataset; confirm the basis in the linked document.

Procedural posture

Monetary Sanction; Referral to the Bar; Motions stricken without leave to refile

Correction behavior

Correction behavior is not separately verified in the current record.

Tracked discrepancy record

2 citation, quotation, or authority issues are recorded in the source dataset.

Fabricated: Case Law | The motion relies on a cited case that does not exist; Court's research found 2021 WL 4453429 is not a judicial opinion and no Reed v. ZipRecruiter opinion was located.
False Quotes: Case Law | Eight instances where the motion quotes language attributed to real cases but the quoted language does not appear in those cases (court identified specific ECF locations).

Questions this record answers

What happened in Buchanan v. Vuori, Inc.?: Fabricated: Case Law | The motion relies on a cited case that does not exist; Court's research found 2021 WL 4453429 is not a judicial opinion and no Reed v. ZipRecruiter opinion was located. Outcome: Monetary Sanction; Referral to the Bar; Motions stricken without leave to refile. Order to Show Cause is here.
Why does Buchanan v. Vuori, Inc. matter for legal AI risk?: Mixing consumer AI (ChatGPT/Claude) with paid tools (Westlaw/Lexis) still triggers bar referral — verify every cite against primary source.
What does the public record establish about Buchanan v. Vuori, Inc.?: Retained unchanged after audit: the existing summary is source-specific, non-placeholder, and supported by the recorded source link. Read the underlying source before relying on it for legal advice or a filing.
Which source supports this Buchanan v. Vuori, Inc. summary?: The recorded source is Damien Charlotin case archive. It is classified as publisher document archive; review the linked material and subsequent docket history before relying on this summary.

Related matters

Related by court, jurisdiction, tool, or classified failure pattern. Similarity does not imply the same facts or outcome.

Coronavirus Reporter Corporation v. Apple Inc.N.D. California · Jul 30, 2025same court · fake citations + fabricated quotes Zhdanovich-Doty v. Provident Life and Accident Insurance CompanyN.D. California · Jun 22, 2026same court · fake citations + contract Najafpir v. Wells Fargo Bank, N.A.N.D. California · Apr 3, 2026same court · fake citations + contract Sebastian Rako v. VMware LLC (2)N.D. California · Feb 4, 2026same court · fake citations + contract Gharavi v. Google LLCN.D. California · Jan 12, 2026same court · fake citations + contract Marc Henri David v. George Chiala Farms, Inc.N.D. California · Nov 7, 2025same court · fake citations + fabricated quotes

Linked evidence record

Damien Charlotin case archive

Publisher document archive
The recorded document is hosted in the upstream publisher archive.

Open recorded source

Publication statusevidence baseline passed

Published by AI Vortex · Manu Ayala
Page updated Jul 27, 2026

Source host classified Attribution boundary stated Limitations disclosed

Corpus checked Jul 23, 2026; latest tracked decision Jul 21, 2026. AI Vortex summarizes public records and does not replace the court document or legal research service.

Use this record

Open case brief Cases from this court Open jurisdiction map

Evidence boundary

Retained unchanged after audit: the existing summary is source-specific, non-placeholder, and supported by the recorded source link. Read the underlying source before relying on it for legal advice or a filing.

Read methodology

Why this matter is tracked

Operational lesson

Mixing consumer AI (ChatGPT/Claude) with paid tools (Westlaw/Lexis) still triggers bar referral — verify every cite against primary source.

Record details

CaliforniaSingle-state evidence scope

Jurisdiction contextThe state marker is derived from the structured case record.

CourtN.D. California

Jurisdictionfederal

Circuit9th Circuit

DateNov 20, 2025

AI toolChatGPT-4, OpenAI, Claude, Clear Brief, Lexis Nexis & Westlaw

Party typeLawyer

OutcomeMonetary Sanction; Referral to the Bar; Motions stricken without leave to refile

Known amountNot recorded

Professional sanctionYes

Tracked discrepancy record

2 citation, quotation, or authority issues are recorded in the source dataset.

Fabricated: Case Law | The motion relies on a cited case that does not exist; Court's research found 2021 WL 4453429 is not a judicial opinion and no Reed v. ZipRecruiter opinion was located.

False Quotes: Case Law | Eight instances where the motion quotes language attributed to real cases but the quoted language does not appear in those cases (court identified specific ECF locations).

Questions this record answers

What happened in Buchanan v. Vuori, Inc.?

Why does Buchanan v. Vuori, Inc. matter for legal AI risk?

Mixing consumer AI (ChatGPT/Claude) with paid tools (Westlaw/Lexis) still triggers bar referral — verify every cite against primary source.

What does the public record establish about Buchanan v. Vuori, Inc.?

Which source supports this Buchanan v. Vuori, Inc. summary?

The recorded source is Damien Charlotin case archive. It is classified as publisher document archive; review the linked material and subsequent docket history before relying on this summary.