<p>TypeSafe AI released Jev, a System One model that answers typed questions with probabilities instead of generating text. Input costs $0.042 per 1M tokens, and output tokens are free. We cover the API, the vendor benchmarks and their caveats, what developers are already building, and the documented limits.</p> <p>The post <a href="https://www.marktechpost.com/2026/09/19/typesafe-ai-releases-jev/">TypeSafe AI Releases Jev: A System One Model That Returns Typed, Calibrated Decisions Instead of T