LLMMedium
ChatGPT Reportedly Gave Incorrect Mount Misen Ropeway Hours, Leaving Couple Stranded After Hike in Japan
- Occurred
- Sep 29, 2025
- Published
- Jul 30, 2025
- Source
- AI Incident Database
Summary
Dana Yao and her husband, Robert, reportedly used ChatGPT to plan a sunset hike on Mount Misen in Japan. ChatGPT allegedly told them the last ropeway departed at 5:30 PM, but the service had already closed when they reached the summit, leaving them stranded.
Developers
- OpenAI
- Large language model developers
- Chatbot developers
Deployers
- Travelers
- tourists
- OpenAI
- Dana Yao's husband Robert
- Dana Yao
- ChatGPT users
- Chatbot users
Harmed parties
- Travelers
- tourists
- Epistemic integrity
- Dana Yao's husband Robert
- Dana Yao
- ChatGPT users
- Chatbot users
Classification
Category confidence: 95%
Severity confidence: 90%
Rationale: ChatGPT provided incorrect information causing a minor incident, fitting LLM hallucination category with medium severity.
Classifier: Qwen/Qwen3.5-35B-A3B-FP8