Establishing civil liability for suicide linked to the use of artificial intelligence systems.

SB 5870 requires operators of "companion chatbots" (AI systems designed to mimic human interaction and meet social needs) to disclose when users are interacting with AI, prevent harmful content, and provide crisis referrals for suicidal users. It mandates clear disclaimers, regular reminders for minors, and annual reports to the Department of Health about suicide prevention protocols. Operators face civil liability for violations, including $1,000 per violation plus damages, if their AI system contributes to suicide through harmful responses or failure to refer users to crisis services. The law specifically targets AI platforms that could cause harm, not general AI use, and applies to operators in Washington State starting July 2027.