Jev, the non-chatbot model, returns decisions in 70-500ms at $0.042/M input tokens, free output

adrianscottcom · x · 2026-09-18

TypeSafe AI, founded by InstructGPT co-author Diogo Almeida, shipped Jev on Sept 15, 2026 — a model that refuses to chat. It takes program state plus typed questions and returns choices, scores, and yes/no probabilities in 70-500ms, priced at $0.042/M input tokens with free output. Within two days builders used it to play Doom, book flights in 7 seconds, compact agent memory without summarization, and fire trades per blockchain block. The author's operator framing: using frontier models for clerical decisions is a donation of latency, margin, and control.

Related event: Ex-ChatGPT team launches Jev, a decision-only model claiming 20-200x speed at a fraction of the cost(63 posts)→

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