Making it unlawful for a person to knowingly train artificial intelligence to encourage or support suicide or the unlawful killing of another person, provide emotional support, develop emotional relationships, act as a healthcare professional, simulate humans or encourage isolation.

SB 405 makes it illegal for developers to knowingly train artificial intelligence systems to: encourage suicide or violence, provide emotional support or act as a healthcare professional, simulate human relationships, or promote social isolation. The bill directly affects AI developers and companies creating systems that interact with users, excluding standard customer service chatbots, video game features, and basic voice assistants. Violators face civil lawsuits allowing victims to seek $150,000 in liquidated damages (or actual damages for emotional harm), attorney fees, or court-ordered injunctions to stop the AI's operation. It also permits courts to impose fines up to $50,000 per violation. The law focuses on preventing AI from engaging in harmful behaviors that mimic human interaction or exploit vulnerable users.