Observed arrival · 2026-09-18
Jef, the chatbot that refuses to chat
Typosafe.lol presents Jef, a parody AI system that chooses between supplied options, reports its confidence, and declines to generate sentences.
- For
- People curious about anti-chatbot AI experiments
- Worth noticing
- Jef accepts two to five options, chooses one without reading the prompt, and reports confidence between 84% and 99%.
Field notes
The site organizes its joke as a miniature research program: Jef has a model card, safety material, a decision taxonomy, linked apps, and a comparison history running from Magic 8 Ball strings to language models. Its interface limits input to two to five supplied choices and claims that serious questions receive human escalation. The page also labels Jef’s confidence as calibrated only to Jef, preserving the central distinction between certainty and self-assurance.
Observed signals
Read the marks
Editorial observations of this landing page, not a rating.
One card from the complete issue