Jev case: a guy who helped build chatgpt made a model that
Summarized Jev as a model that only does yes/no with probability, choice, or scoring, at 70-500ms per call.
The original post
a guy who helped build chatgpt made a model that can't write a single word. on purpose jev does three things. yes/no with a probability, picks one option from your list, or scores something on your scale. that's it. no text, ever 70-500ms per call. $0.042 per million tokens in,
Engagement when collected
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 general Jev builds. 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. Browse the full case library for the work it sits next to.
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Last updated: 2026-09-22 · sources & corrections · every card links to its author's original post