Claude AI generated fake court citations; the lawyer apologized and admitted making mistakes

In a federal court lawsuit involving the Trump administration’s large-scale federal layoffs, attorney Jason Grieves filed a declaration on May 16 admitting that the motion documents submitted to the court contained false citations. The citations were generated after he drafted the motion using Anthropic’s enterprise AI platform, Claude Console.

Confirmed Event Timeline: Full Process of Grieves’ Declaration

May 6, morning (confirmed): Due to time constraints, Grieves used Claude Console to create the initial draft of the motion, and sent the draft to an assistant attorney while giving clear oral instructions: “This draft was generated by artificial intelligence; you need to carefully check the citations.”

May 6, afternoon (confirmed): The assistant attorney told Grieves that she had reviewed and verified every citation. She found that two case references were incorrect and located another replacement case; however, the false citations still appeared in the final filed documents.

In his declaration, Grieves confirmed two points of responsibility: “Ensuring the citations are accurate in every respect is entirely my responsibility, and I take full responsibility for this”; “While the cited cases may generally support our position, allowing false citations to be included is an inexcusable error.”

Confirmed Position of Claude Console

Claude Console (formerly the Anthropic Developer Console), launched in March 2023, is Anthropic’s enterprise AI platform for businesses and professionals to interact with the Claude AI model. Its uses include drafting documents, summarizing, coding, and research. In his declaration, Grieves describes it as an “enterprise-grade, data-isolated AI platform,” distinguishing it from the consumer-focused Claude.ai.

Background: Confirmed Precedent for AI Hallucinations Entering Court

In April 2026, a lawyer at the law firm Sullivan & Cromwell was formally sanctioned for submitting AI-generated fake legal citations to the court. The Trump administration’s large-scale federal layoffs lawsuit involved in Grieves’ case includes FEMA staff reductions and a proposed civil servant protections reform, and the court has not yet published decisions on how subsequent matters will be handled.

FAQ

How does Grieves explain the allocation of responsibility for the false citations?

According to Grieves’ declaration, he clearly told the assistant attorney by telephone that the draft was AI-generated and required her to check it. The assistant attorney confirmed that she reviewed it, but false citations still made it through. Grieves explicitly stated that as the managing partner and the person who signed the complaint, he bears full responsibility and did not shift blame to the assistant or to the AI tool itself.

What is the difference between Claude Console and general Claude AI usage?

Claude Console (Anthropic Developer Console) is an enterprise AI platform with a data-isolation design, intended for businesses and professional users; it differs from the consumer version Claude.ai in data handling and compliance frameworks. Grieves specifically emphasized that he used an “enterprise-grade, data-isolated AI platform,” but this does not prevent AI hallucinations (generating incorrect citations) from occurring.

How does the court handle cases involving AI-generated false citations?

In the April 2026 Sullivan & Cromwell case, a lawyer was formally sanctioned for similar issues. In Grieves’ case, the lawyer has formally apologized to the court; the court has not yet published the specific outcome of how the matter will be handled.