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Incident 1499: Claude Console Reportedly Generated Phantom Legal Quotations in Trump Layoffs Court Filing

Responded
Description: A Binnall Law Group attorney reportedly used Anthropic's Claude Console to draft a motion to quash a subpoena in litigation over Trump administration layoffs, then filed a version containing "phantom" quotations that did not appear in the cited cases. The attorney apologized to U.S. District Judge Susan Illston, and the firm said it would add safeguards and training after calling the AI-generated errors unacceptable.

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Alleged: Anthropic developed an AI system deployed by Binnall Law Group and Jason Greaves, which harmed Epistemic integrity , Judicial integrity , Joseph Guy , Parties in Trump administration layoffs and Parties in American Federation of Government Employees, AFL-CIO v. Trump.
Alleged implicated AI systems: Claude Console and Large language models

Incident Stats

Incident ID
1499
Report Count
2
Incident Date
2026-05-06
Editors
Daniel Atherton

Incident Reports

Reports Timeline

Incident OccurrenceNotice of Declarations from Third-Party Joseph Guy's Counsel – Case Nos. 3:25-cv-3698-SI and 3:26-mc-80146-SI - ResponseLawyer apologizes for 'phantom' AI quotes in Trump layoffs case
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Notice of Declarations from Third-Party Joseph Guy's Counsel – Case Nos. 3:25-cv-3698-SI and 3:26-mc-80146-SI

Notice of Declarations from Third-Party Joseph Guy's Counsel – Case Nos. 3:25-cv-3698-SI and 3:26-mc-80146-SI

fingfx.thomsonreuters.com

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Lawyer apologizes for 'phantom' AI quotes in Trump layoffs case

Lawyer apologizes for 'phantom' AI quotes in Trump layoffs case

reuters.com

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Notice of Declarations from Third-Party Joseph Guy's Counsel – Case Nos. 3:25-cv-3698-SI and 3:26-mc-80146-SI
fingfx.thomsonreuters.com · 2026
Lindsay R. McKasson, Jason Greaves, Jesse R. Binnall post-incident response

AIID editor's note: This is just an excerpt of the beginning of the full apology filing. Please see the original source for the PDF: https://fingfx.thomsonreuters.com/gfx/legaldocs/myvmylgokvr/Binnall%20AI%20apology.pdf.

I, Jason C. Greaves…

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Lawyer apologizes for 'phantom' AI quotes in Trump layoffs case
reuters.com · 2026

May 18 (Reuters) - A lawyer at Binnall Law Group has apologized to a federal judge in San Francisco for including "phantom" quotations generated by artificial intelligence in a court filing related to the Trump ​administration's firing of g…

Variants

A "variant" is an AI incident similar to a known case—it has the same causes, harms, and AI system. Instead of listing it separately, we group it under the first reported incident. Unlike other incidents, variants do not need to have been reported outside the AIID. Learn more from the research paper.
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