ChatGPT's co-inventor Diogo Almeida says his new model Jev
Highlighted Jev's design of returning a typed yes or no decision instead of writing text, avoiding slow chat-model reasoning for binary choices.
The original post
ChatGPT's co-inventor Diogo Almeida says his new model Jev is 193x faster than AI.
Jev by TypeSafe never writes text. Context in, typed decision out. YES or NO instead of an essay.
You are paying a chat model to think for 9 seconds about a yes or no.
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