Calibration
APEX-Agents-AA → MCP Atlas
MCP Atlas is estimated from APEX-Agents-AA with a Michaelis–Menten + offset curve fitted on 13 models measured on both: y = 0.0000 + 1.8307·x / (0.50574 + x), R² = 0.79, cross-validated error 9.4 pp. It is used for 2 estimates.
| Estimated model | APEX-Agents-AA | MCP Atlas | Source |
|---|---|---|---|
| Claude Opus 4.6 (Adaptive) | 33.0% | 72.3% | estimated ± 9.4 pp, medium confidence |
| Kimi K2.5 (Reasoning) | 11.5% | 33.9% | estimated ± 9.4 pp, medium confidence |