{
  "epoch": 1,
  "global_step": 2000,
  "metrics": {
    "binary_accuracy": 0.3119266055045872,
    "binary_f1": 0.26331440929981076,
    "binary_precision": 0.2980769230769231,
    "binary_recall": 0.9393939393939394,
    "category_accuracy": 0.14210526315789473,
    "category_f1": 0.02867063492063492,
    "region_accuracy": 0.0,
    "region_f1": 0.0,
    "severity_accuracy": 0.8888888888888888,
    "severity_f1": 0.3137254901960784,
    "classification_accuracy": 0.238,
    "generation_bleu": 0.05788024285142243,
    "generation_rouge_l": 0.14511083439380387,
    "generation_exact_match": 0.0,
    "generation_word_overlap": 0.2132263226240825,
    "template_bleu": 0.12683278268411705,
    "template_word_overlap": 0.3141758123060092,
    "chexpert_auroc": 0.4921689663519729,
    "grounding_mean_iou": 0.0533295483900367,
    "grounding_acc_iou25": 0.004,
    "grounding_acc_iou50": 0.0,
    "pointing_accuracy": 0.314,
    "loss": 0.0334913391391035
  },
  "timestamp": "2026-07-05T20:02:26.052425",
  "note": "best_model is a pointer; load checkpoint-{global_step}/ instead, or use scripts/serve_app.py which resolves checkpoint_step.txt automatically."
}