System One Model launch
Introducing System One Models & Jev
Published by TypeSafe AI
About this resource
You want TypeSafe AI's September 15, 2026 launch explanation of Jev, a non-chat model that evaluates unstructured state and returns typed probabilistic decisions for software workflows. The article also explains the team's RLCD training approach, early-access status, published speed and cost results, and the limits of those comparisons.