TypeSafe AI just shipped Jev, from Diogo Almeida

@kysstalol Kyssta · Sep 21, 2026 · case #003638 · listed via Jev Hub

Still from the clip posted with this case; watch it in the original post on X.

Shipped Jev, which takes a state and a list of typed questions and answers them in parallel with probabilities in 70-500ms so code can branch on decisions.

The original post

TypeSafe AI just shipped Jev, from Diogo Almeida — co-inventor of RLHF at OpenAI. It does not generate text. You send it a state and a list of typed questions, it answers in parallel with probabilities in 70-500ms. Code branches on decisions, not chat. https:// typesafe.ai.

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Numbers are a snapshot taken from X when the case was added to the library (schema v1, collected 2026-09-19); they will not match today.

Where this case fits

Filed under coding & developer tools. In the pattern Jev is built for, the model answers a bounded question per step — and ordinary code acts on the answer, because the answer is already a value rather than a paragraph. Other posts in the same family are on the coding & developer tools page.

🛠️ Coding & developer tools