# JevBench leaderboard

Reasoning benchmark

> Every figure below is reproduced as its upstream source published it: nothing is modelled, estimated, interpolated or converted. `Unavailable` means no source published the value — it is never a zero. Each value carries its evidence state and the date it was observed.

Page: https://modelscale.dev/leaderboards/benchmarks/reasoning-jev-bench

Every model the catalog carries a published JevBench value for, ranked by that value.

## Benchmark record

| Field | Value |
| --- | --- |
| Category | Reasoning |
| Measure | Official option A harmonic composite with published uncertainty |
| Tasks | 904 open decisions plus 720 sealed decisions per complete run |
| Difficulty | Choice, Noul, and Score decisions with sealed generalization tests |
| Published by | [JevBench v1.5 frozen method and disclosures](https://github.com/fstandhartinger/jevbench/blob/bb05a335bc809e61b20c0f745d25499a82b326fc/docs/METHOD-v1.5-README.md) |

Typed-decision evaluation across 1,624 decisions, combining chance-corrected intelligence, probability calibration, latency, and cost.

## JevBench ranking

No model in the catalog has a published JevBench score. The benchmark is defined by JevBench v1.5 frozen method and disclosures, but the catalog carries no value for it yet. An absent value is shown as absent here rather than as a zero.

Rows are ordered by the value the source published, highest first. The source does not state whether a higher value is the better result, so this document does not either: for a benchmark that measures a rate of failure, read the table from the bottom.