Jeva: a first-principles System One model architecture with null-aware, cacheable decisions

burny_tech · x · 2026-10-20

burnytech highlights the Jeva paper, a System One model architecture built from first principles for fast decision-making given a state and candidate options. Compared to conventional joint-encoding designs, Jeva adds four structural properties: (a) null-awareness with an explicit 'none of the above' outcome, (b) permutation invariance so candidate order doesn't change the choice, (c) natural support for variable-size candidate sets, and (d) cacheable option representations reusable across requests via an Option Memory block — promising more robust and efficient inference for decision tasks.

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