jev scored 641 on zetamac in 120 seconds.

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Ran Jev on Zetamac arithmetic, scoring 641 in 120 seconds by picking answer digits with 93% first-guess accuracy.

The original post

jev scored 641 on zetamac in 120 seconds. it picked the answer's digits with no calculator involved. 93% right on the first guess. retries handled the rest.

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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 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