Calibration
AA ITBench → APEX-Agents-AA
APEX-Agents-AA is estimated from AA ITBench with a offset logistic curve fitted on 5 models measured on both: y = 0.3366 + (0.3939 − 0.3366) / (1 + exp(−200.00·(x − 0.4533))), R² = 0.80, cross-validated error 3.2 pp. It is used for 4 estimates.
| Estimated model | AA ITBench | APEX-Agents-AA | Source |
|---|---|---|---|
| DeepSeek V4.1 Flash | 46.9% | 39.2% | estimated ± 3.2 pp, medium confidence |
| GLM-5.3 | 46.1% | 38.4% | estimated ± 3.2 pp, medium confidence |
| GLM-5.3-Flash | 51.2% | 39.4% | estimated ± 3.2 pp, medium confidence |
| Grok 4.7 | 42.1% | 33.7% | estimated ± 3.2 pp, low confidence |