Prism-1 Decision Sets - JevBench: leaderboard

Prism-1 paper decision benchmark: single-choice decisions over 2 to 20 options read in one call without generated reasoning. JevBench: its 139 public choice tasks (3-6 options); it has no training split. Only the models marked as published and not trained on the paper's data are published: the Jev 1.13 and Mercury Decide decision APIs and Torchcast Decision 12B (a published decision fine-tune of Gemma 4 12B). The SCQ, set-based and Prism-1 rows are methods fine-tuned on the paper's training splits and are omitted. Metric: Accuracy (%). Higher is better. Source: https://arxiv.org/html/2610.22066v1

Metric: Accuracy (%). Source: arxiv.org. Saturation forecast: Rough model projection: around 2026. 3 models tracked.

Top models

#ModelScoreOverall rank
1Mercury Decide89.9
2Jev 1.1388.5
3Torchcast Decision 12B87.8

Interactive version: theaggregate.ai/benchmark?slug=prism-1-decision-sets-jevbench · How It Works · Data refreshed daily, snapshot 2026-10-18.