Post · Benchmarks & research
Post-train your own judge on your agent's traces
A 4B, 8B or 27B judge that beats Jev on human agreement.
Open x.com ↗Releasing Your Own Jev
Post-train a 4B/8B/27B judge on your agent's traces. It beats Jev.
79.7% agreement with human labels vs Jev's 66.3%
Beats DeepSeek-V4.1-Flash (763B) by 14 points
0.13s per step on a single GPU
Completely open source: recipe, data, training, evals
The decision Jev makes
Benchmark questions with known answers, to check accuracy and confidence.
Where it fits
Head-to-head tests, calibration studies and independent research into how well Jev decides, how fast, and at what cost. All 682 benchmarks & research projects →
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