Jev, a 'System One' model by Typesafe, launches on OpenRouter with typed decisions instead of text
majidmanzarpour · x · 2026-09-18
- Jev by Typesafe is now in beta on OpenRouter.
- Positioned as a "System One" model: instead of generating text, it takes your app's state plus a typed question and returns a typed decision with a probability attached.
- No JSON prompting, no parsing layer, nothing to validate against — a new model shape for high-frequency in-app decisions.
Related event: TypeSafe AI Launches Jev, a Decision-Only Model That Outputs No Text(73 posts)→
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