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JevBench by Benchmark Heaven · v1.4.2 · individual system

Instinct (ZooWork, Qwen3.8-27B)

This detail uses the public, hash-checked v1.4.2 aggregate. Scores and ranks can change when a new release is published; the page preview remains name-only.

JevBench v1.4.2 score

11.4

Rank #74 of 89 ranked systems.

52.7 points behind Jev 1.13.0's 64.1.

Where it sits among the 89 ranked systems. The marked tick is Jev 1.13.0 (63.3).

Published axes

intelligence
51.1
calibration
78.7
speed
83.9
cost
24.6

Accuracy per tier, incl. sealed

Four radars compare this fixed pair across the score axes, accuracy per tier, and accuracy by family on the hard tier and sealed set. Further out is better on every spoke.

  • A: Instinct — Jev rebuild · Score 11.4 (#74)
  • B: decider-4b v2 — system-one-open · Score 64.1 (#1)

The four score axes

Radar: the four score axes, two systemsThe four score axes, Instinct vs decider-4b v2. Intelligence: 51.1 vs 49.4; Calibration: 78.7 vs 75.0; Speed: 83.9 vs 92.9; Cost: 24.6 vs 60.9.50100Intelligence51.1 · 49.4Calibration78.7 · 75.0Speed83.9 · 92.9Cost24.6 · 60.9
0–100, the values in the table. A label-only system has no calibration (counted as 0).

Accuracy per tier, incl. sealed

Radar: accuracy per tier, incl. sealed, two systemsAccuracy per tier, incl. sealed, Instinct vs decider-4b v2. Easy: 99% vs 100%; Standard: 96% vs 97%; Judge: 95% vs 88%; Hard: 76% vs 67%; Sealed: 35% vs 35%.50100Easy99% · 100%Standard96% · 97%Judge95% · 88%Hard76% · 67%Sealed35% · 35%
Share correct per tier; Sealed = the 308 private decisions, aggregate only.

Hard tier by family (v1.2 topics)

decider-4b v2 has no published v1.2 hard-tier family breakdown.

Radar: hard tier by family (v1.2 topics), two systemsHard tier by family (v1.2 topics), Instinct vs decider-4b v2. Adversarial: 100% vs —; Ambiguous: 86% vs —; Judge: 85% vs —; Long policy: 74% vs —; Multi-hop: 80% vs —; Probability: 60% vs —; Routing: 100% vs —; Temporal / numeric: 37% vs —; Trade-off: 83% vs —; Trap: 100% vs —.50100Adversarial100%Ambiguous86%Judge85%Long policy74%Multi-hop80%Probability60%Routing100%Temporal /numeric37%Trade-off83%Trap100%
Share correct within each family of the 47 v1.2 hard-tier decisions (public and held-out).

Sealed set by family

Radar: sealed set by family, two systemsSealed set by family, Instinct vs decider-4b v2. Ambiguous / abstain: 43% vs 43%; Judge: 44% vs 32%; Long policy: 25% vs 30%; Multi-hop: 32% vs 34%; Paraphrase: 57% vs 50%; Probability: 32% vs 36%; Safety judge: 50% vs 38%; Temporal / numeric: 21% vs 30%; Trade-off: 31% vs 35%; Trap / adversarial: 58% vs 33%.50100Ambiguous /abstain43% · 43%Judge44% · 32%Long policy25% · 30%Multi-hop32% · 34%Paraphrase57% · 50%Probability32% · 36%Safety judge50% · 38%Temporal /numeric21% · 30%Trade-off31% · 35%Trap /adversarial58% · 33%
Share correct within each sealed family — system-level aggregates; the items stay private.

Availability and evidence

Openness
Marked closed in the published row
License note
proprietary service over Apache-2.0 base weights (Qwen3.8-27B)
Cost evidence
estimated; the board’s row disclosure contains the published basis.
Endpoint condition
free evaluation/demo endpoint (ZooWork Instinct, api.zoowork.ai), reached from a Hetzner server in Germany
Published source
https://github.com/fstandhartinger/jevbench/issues/69

Read the full board and published method. The overall score is a composite, not raw accuracy.