AI Hallucinations AI News & Updates

Anthropic Apologizes After Claude AI Hallucinates Legal Citations in Court Case

A lawyer representing Anthropic was forced to apologize after using erroneous citations generated by the company's Claude AI chatbot in a legal battle with music publishers. The AI hallucinated citations with inaccurate titles and authors that weren't caught during manual checks, leading to accusations from Universal Music Group's lawyers and an order from a federal judge for Anthropic to respond.

Study Reveals Asking AI Chatbots for Brevity Increases Hallucination Rates

Research from AI testing company Giskard has found that instructing AI chatbots to provide concise answers significantly increases their tendency to hallucinate, particularly for ambiguous topics. The study showed that leading models including GPT-4o, Mistral Large, and Claude 3.7 Sonnet all exhibited reduced factual accuracy when prompted to keep answers short, as brevity limits their ability to properly address false premises.