I gave an evolution simulation to Jev, a small model from
Ran an evolution simulation where Jev decided which of 432 creatures survived, mated, and died across 14 generations and an ice age.
The original post
I gave an evolution simulation to Jev, a small model from @typesafeai that answers typed questions with odds instead of writing text.
Two species with opposite DNA. 14 generations. An ice age. 432 creatures.
Jev decided who survived, who mated, and what killed each one.
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