Repo · Benchmarks & research
Jev Synthetic Survey
Independent evaluation running Jev jev-1.13.0 and GPT-4.1 as the same 300 Twin-2K-500 synthetic survey respondents across 24,596 paired cells,…
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Jev vs GPT-4.1 as synthetic survey respondents on Twin-2K-500. How you ask mattered more than which model you used.
behavioral-economicsbenchmarkcalibrationdigital-twindigital-twinsjevllmllm-evaluationprobability-elicitationsurvey-simulationsynthetic-surveytwin-2k-500
How builders describe it
Independent evaluation running Jev jev-1.13.0 and GPT-4.1 as the same 300 Twin-2K-500 synthetic survey respondents across 24,596 paired cells, finding that asking a yes/no item as a Noul rather than a Choice moved results more than the model gap, at a thirty-fourth of the cost.
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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