FILE PHOTO: Anthropic logo, a keyboard and a robotic hand in this illustration created on June 5, 2026. REUTERS/Dado Ruvic/Illustration/File Photo

Anthropic has accused Chinese technology and e-commerce giant Alibaba of illicitly extracting capabilities from its Claude AI model, describing the incident as the largest known distillation attack it has faced. The allegation was made in a letter obtained by Reuters on June 24.