Video-MME (w/o subtitle) → AI2D_TEST

AI2D_TEST is estimated from Video-MME (w/o subtitle) with a Michaelis–Menten + offset curve fitted on 7 models measured on both: y = 0.5598 + 2.0000·x / (3.82223 + x), R² = 0.50, cross-validated error 2.5 pp. It is used for 0 estimates.