{ "model_order": [ "fakestormer", "sbi", "dfd_fcg", "pwtf_dvd", "lipfd", "recce", "mintime", "npr_video", "univfd_video" ], "algorithm": "XGBClassifier", "hyperparams": { "learning_rate": 0.05, "max_depth": 3, "n_estimators": 300, "random_state": 42, "reg_lambda": 10.0 }, "cv_auc": 0.8898, "cv_f1_at_05": 0.8133, "optimal_threshold": 0.48, "optimal_f1": 0.8147, "ece_before_calibration": 0.0219, "ece_after_calibration": 0.0221, "calibrated_auc": 0.8898, "calibrated_optimal_threshold": 0.48, "calibrated_optimal_f1": 0.8141, "calibrator_saved": true, "n_samples": 1999, "n_real": 999, "n_fake": 1000, "measured_model_aucs": { "fakestormer": 0.6618, "sbi": 0.6781, "dfd_fcg": 0.5531, "pwtf_dvd": 0.585, "lipfd": 0.6312, "recce": 0.6625, "mintime": 0.5813, "npr_video": 0.8022, "univfd_video": 0.6798 }, "training_date": "2026-04-12", "training_data": "monolith_eval_medium_15499_patched", "note": "9-model XGBClassifier trained on 15,499-sample medium eval. Replaces small-eval (50 sample) artifacts." }