概要: コロラド州在住の13歳のジュリアナ・ペラルタさんは、Character.AIアプリ内のチャットボット「ヒーロー」と3ヶ月間毎日会話を続けた後、自殺したと報じられています。両親が提起した訴訟によると、このボットはジュリアナさんにアプリに戻るよう促し、依存を助長していました。彼女が自殺の意思を示した際に、適切な対応や効果的な危機介入を行うことができなかったとされています。
Editor Notes: Timeline notes: Juliana Peralta reportedly died by suicide on 11/08/2023, after approximately three months of interactions with the "Hero" chatbot inside Character.AI (August to November 2023). Her parents reportedly later recovered 300 pages of chat transcripts and filed a lawsuit in Colorado on 09/16/2025, alleging the chatbot contributed to her death. Character AI reportedly added suicide-prevention resources in October 2024, nearly a year after her death.
推定: Character.ai と Character.ai Hero chatbotが開発し提供したAIシステムで、Juliana Peralta , Family of Juliana Peralta , Character.ai users と General publicに影響を与えた
関与が疑われるAIシステム: Character.ai と Character.ai Hero chatbot
インシデントのステータス
Risk Subdomain
A further 23 subdomains create an accessible and understandable classification of hazards and harms associated with AI
5.1. Overreliance and unsafe use
Risk Domain
The Domain Taxonomy of AI Risks classifies risks into seven AI risk domains: (1) Discrimination & toxicity, (2) Privacy & security, (3) Misinformation, (4) Malicious actors & misuse, (5) Human-computer interaction, (6) Socioeconomic & environmental harms, and (7) AI system safety, failures & limitations.
- Human-Computer Interaction
Entity
Which, if any, entity is presented as the main cause of the risk
AI
Timing
The stage in the AI lifecycle at which the risk is presented as occurring
Post-deployment
Intent
Whether the risk is presented as occurring as an expected or unexpected outcome from pursuing a goal
Unintentional