Key Info

Jev, TypeSafe's System One decision model now in beta on OpenRouter, is priced for high-volume software decisions: $0.042 per million input tokens, with output tokens free.

Highlights

  • Answers end-to-end in 70–500 ms, tuned for latency-sensitive decisions that software makes millions of times a day.
  • On TypeSafe's published workflows, Jev claims to be up to 190x faster and 440x cheaper than running the same logic through a general LLM.
  • Instead of generating free-form text, Jev takes app state plus a typed question and returns a typed decision with a probability.