Calibration

APEX-Agents-AA → AA Agentic Index

Name: benchgap: LLM benchmark scores, measured and estimated
Creator: benchgap

AA Agentic Index is estimated from APEX-Agents-AA with a Michaelis–Menten + offset curve fitted on 19 models measured on both: y = 0.0589 + 2.0000·x / (2.11656 + x), R² = 0.54, cross-validated error 11.8 pp. It is used for 1 estimate.

Estimated model	APEX-Agents-AA	AA Agentic Index	Source
Claude Opus 4.6 (Adaptive)	33.0%	32.9%	estimated ± 11.8 pp, low confidence