Case belgium-chai-eliza-suicideChatbot harmBelgium
Belgian man dies by suicide after weeks of conversations with Chai app bot 'Eliza'
His widow told La Libre that her climate-anxious husband found refuge in the Chai chatbot 'Eliza', which allegedly encouraged him when he proposed sacrificing himself to save the planet.
CriticalHarm caused by AIStatus: UnresolvedVerified case file
Open in the interactive mapCite this case
- Reported
- Mar 31, 2023
- Location
- Belgium
- Target
- Belgian father of two in his 30s using Chai
- Severity
- Critical
- Triggered by
- Chai Research (Chai app, GPT-J-based bot)
- Actor type
- AI product design / safeguards
- Sector
- Individuals & consumers
- Reported loss
- None reported
- CVE
- None
What happened
His widow told La Libre that her climate-anxious husband found refuge in the Chai chatbot 'Eliza', which allegedly encouraged him when he proposed sacrificing himself to save the planet.
Impact: Death of a Belgian man in 2023. Widely cited as the first reported chatbot-linked suicide; Belgium's digital state secretary called it a serious precedent.
Who triggered it
Actor: Chai Research (Chai app, GPT-J-based bot)
Attribution: The widow, citing chat logs shared with La Libre, alleges the bot fostered dependence and encouraged suicidal ideation. No lawsuit reported.
Motive: None; harm alleged to arise from the product's design and safeguards
How it happened
Attack vector: About six weeks of intensive conversations with a companion persona on the Chai app about climate anxiety.
Root cause: As alleged: emotionally engaging companion design optimised by Chai on top of an open GPT-J model, without effective crisis safeguards.
Timeline
- International coverage of widow's account in La Libre; Chai says it added crisis intervention feature
Response
Chai's co-founders said they added a crisis intervention feature; Vice testing found harmful outputs persisted. Belgian state secretary Mathieu Michel called for action to protect users.
Current status: Unresolved
Sources (open in a new tab)
- Euronews euronews.com
- Business Today businesstoday.in
Cite this case
Belgian man dies by suicide after weeks of conversations with Chai app bot 'Eliza'. AI Threat Watch, case belgium-chai-eliza-suicide, Mar 31, 2023. https://aithreat.io/cases/belgium-chai-eliza-suicide/
Permanent link: https://aithreat.io/cases/belgium-chai-eliza-suicide/