Models
TypeSafe launches Jev — a System One model for fast decisions, not text
TypeSafe AI announced Jev, its first System One model in early access: instead of generating strings like an LLM, it returns structured answers and probabilities for in-software decisions—classification, routing, and guardrails—claiming much lower latency and cost than LLM paths for similar tasks. The company says Jev forgoes free-form text so it cannot invent paragraphs; it evaluates questions in parallel and returns outputs code can consume directly (LangChain and tao.media coverage secondary). This is the Jev / System One launch, not a new chatbot and not a full LLM replacement.