Calibration
PostTrainBench v1.1 → FrontierCode 1.1 Main
FrontierCode 1.1 Main is estimated from PostTrainBench v1.1 with a offset logistic curve fitted on 6 models measured on both: y = 0.4075 + (0.5383 − 0.4075) / (1 + exp(−176.43·(x − 0.3304))), R² = 0.95, cross-validated error 2.8 pp. It is used for 3 estimates.
| Estimated model | PostTrainBench v1.1 | FrontierCode 1.1 Main | Source |
|---|---|---|---|
| Gemini 3.1 Pro | 22.0% | 40.7% | estimated ± 2.8 pp, low confidence |
| Gemini 4 Argon | 45.3% | 53.8% | estimated ± 2.8 pp, medium confidence |
| GPT-5.4 | 19.0% | 40.7% | estimated ± 2.8 pp, low confidence |