The AI chatbot was used to help draft a citation in an expert report for Anthropic's copyright lawsuit.

Time to lay off the use of AI in legal documents? Amid a high-stakes copyright battle with music publishers, Anthropic ...

The startup admitted to using Claude to format citations; in doing so, the model referenced an article that doesn’t exist, ...

Health and Human Services Secretary Robert F. Kennedy Jr.'s MAHA Report featured several seemingly fake studies and incorrect attributions.

Attorneys for the AI giant say the erroneous reference was an “honest citation mistake,” but plaintiffs argue the declaration ...

From Friday's order by Magistrate Judge Susan van Keulen in Concord Music Group, Inc. v. Anthropic PBC (N.D. Cal.) At the outset, the Court notes that ...

Dukanovic said, “unfortunately, although providing the correct publication title, publication year, and link to the provided source, the returned citation included an inaccurate title and ...

The flawed citations, or "hallucinations," appeared in an April 30, 2025 declaration [PDF] from Anthropic data scientist ...