Magistrate Judge Partially Strikes Expert After AI Mangles Study Citation

( May 27, 2025, 2:29 PM EDT) -- SAN JOSE, Calif. — A federal magistrate judge in California on May 23 struck a portion of an expert report offered by Anthropic PBC containing errors introduced by its Claude artificial intelligence and ordered the company to produce 5 million prompt-output pairs evenly divided between pre-suit and post-suit periods....