Anthropic is one of the world's leading AI companies through its LLM Claude. Latham & Watkins is one of the world's leading law firms. Mix them together, and you end up with today's latest cautionary tale of over-reliance on AI by lawyers. While representing Anthropic in one of many pending cases challenging AI companies' use of copyrighted materials, Latham apparently relied on Claude to create citations for a report submitted by its expert. Unfortunately, Claude hallucinated the citations, leading Latham and the expert to cite a nonexistent academic article. After the music publishers suing Anthropic noticed the invented citation, Latham was forced to cop to the error, submitting a declaration stating that while there was a real report their expert relied upon, Claude created a fake citation rather than providing an accurate one. Oops!
As AI continues to proliferate, I will repeat my mantra of “don't trust and definitely verify” every output it produces. With my BSF colleagues, I am litigating several cases against other AI companies, and you can be sure we will check every citation to make sure Llama or ChatGPT aren't trying to pull a fast one.

/Passle/67ead603e72212c76f32080c/SearchServiceImages/2026-04-28-12-39-42-097-69f0aa8e25793e7f1434b478.jpg)
/Passle/67ead603e72212c76f32080c/SearchServiceImages/2026-04-22-16-47-01-719-69e8fb85a00a5d6a4dad02c7.jpg)
/Passle/67ead603e72212c76f32080c/SearchServiceImages/2026-04-14-19-42-52-569-69de98bca4562b2b93102fce.jpg)
/Passle/67ead603e72212c76f32080c/SearchServiceImages/2026-04-06-15-45-31-922-69d3d51b14283acbb4281469.jpg)