Jev, from a ChatGPT researcher, claims 200x faster and 400x cheaper decisions than LLMs
bibryam · x · 2026-09-22
- TypeSafe AI, founded by ChatGPT researcher Diogo Almeida, launched Jev, a "System One" model for structured decisions, claiming 200x faster and 400x cheaper judgments than LLMs in its own workflow evals (acknowledged as best-case numbers).
- The insight: many LLM calls only need a classification, choice, or score. Jev takes context plus questions with defined answer types and returns probabilities, option distributions, or scores — your code decides what happens next, no generated text to wait for.
- The post includes a minimal Vercel AI SDK 7+ example (experimentalevaluate), with boolean, choice, and score question types.
- It also surveys eight early projects, from browser agents to context filtering, showing where low-latency judgments can replace LLM calls.
Related event: Ex-OpenAI researcher launches decision model Jev with bold speed claims(36 posts)→
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