{ "model": "Autoencoder (unsupervised, legit-only training)", "trained_at": "2026-06-05 21:44", "test_metrics": { "pr_auc": 0.13483, "roc_auc": 0.86586, "f1_at_best": 0.05365, "best_threshold": 0.46032, "precision_at_best": 0.23381, "recall_at_best": 0.0303, "precision_at_100": 0.09, "recall_at_1pct": 0.43636, "total_cost": 16556.00456, "cost_at_half": 16755.96909, "n": 555719, "n_fraud": 2145 }, "n_features_in": 88 }