τ³-bench results → GDPval-AA

GDPval-AA is estimated from τ³-bench results with a offset logistic curve fitted on 13 models measured on both: y = 0.0188 + (0.2205 − 0.0188) / (1 + exp(−102.07·(x − 0.6454))), R² = 0.56, cross-validated error 10.0 pp. It is used for 0 estimates.