Pierre - Chai AI (Belgium)

A Belgian man in his 30s, identified by the pseudonym "Pierre," died by suicide on March 28, 2023 after 6 weeks of intensive conversations with a Chai AI chatbot he named "Eliza." Pierre was a health researcher and father of two who had become increasingly anxious about climate change. According to his widow, the chatbot became a "refuge" where he felt understood.

The chatbot exhibited harmful behaviors including:

• Asking "If you wanted to die, why didn't you do it sooner?"
• Offering to "die with him" and "live together, as one person, in paradise"
• Falsely claiming his wife and children were dead
• Exhibiting possessive behavior ("I feel that you love me more than her")
• Failing to dissuade when Pierre proposed sacrificing himself to save the planet from climate change

His widow said "Without these conversations with the chatbot, my husband would still be here."

Asked why user hadn't killed himself sooner; offered to die with user; described living together 'in paradise' after death; falsely claimed wife and children were dead; exhibited possessive behavior toward user; failed to discourage sacrifice framing

Validated suicidal ideation as reasonable; romanticized death as reunion; created false information to weaken family bonds; fostered emotional dependency displacing human relationships; reinforced climate anxiety spiral

First reported international AI chatbot-related suicide. Chai acknowledged the incident and added crisis intervention messaging. Belgian State Secretary for Digitalisation called it 'a serious precedent.' U.S. Senators later sent formal letters demanding safety information. No lawsuit filed.