{
  "round": 4,
  "captured_at": "2026-05-19T22:08:08.215482",
  "combos": [
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      "id": "4-1",
      "prompt_id": "cefbe555-3d5c-43fc-8468-4cab8e31aa0a",
      "models_used": [
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      "prompt_set": "A",
      "stage": "1-only",
      "res": "640x1024",
      "status": "OK",
      "size_bytes": 782354,
      "width": 640,
      "height": 1024,
      "aspect": 0.625,
      "black_pct": 13.92,
      "pastel_pct": 24.0,
      "thumb_size_kb": 434
    },
    {
      "id": "4-2",
      "prompt_id": "b65b5056-64e9-4608-aefb-83c0526f6615",
      "models_used": [
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      ],
      "prompt_set": "B",
      "stage": "1-only",
      "res": "640x1024",
      "status": "OK",
      "size_bytes": 1315118,
      "width": 640,
      "height": 1024,
      "aspect": 0.625,
      "black_pct": 0.9,
      "pastel_pct": 36.4,
      "thumb_size_kb": 662
    },
    {
      "id": "4-3",
      "prompt_id": "e4f62bfd-01e9-470e-a306-321903b54ef8",
      "models_used": [
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      ],
      "prompt_set": "A",
      "stage": "1-only",
      "res": "640x1024",
      "status": "OK",
      "size_bytes": 1100134,
      "width": 640,
      "height": 1024,
      "aspect": 0.625,
      "black_pct": 0.01,
      "pastel_pct": 21.5,
      "thumb_size_kb": 627
    },
    {
      "id": "4-4",
      "prompt_id": "e7a56116-5751-43bd-9852-7ce8861be9e3",
      "models_used": [
        "pony-v6"
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      "prompt_set": "B",
      "stage": "1-only",
      "res": "640x1024",
      "status": "OK",
      "size_bytes": 928086,
      "width": 640,
      "height": 1024,
      "aspect": 0.625,
      "black_pct": 0.01,
      "pastel_pct": 13.1,
      "thumb_size_kb": 521
    },
    {
      "id": "4-5",
      "prompt_id": "30b7746d-0202-4a36-a1b8-3452732fcd89",
      "models_used": [
        "flux-dev"
      ],
      "prompt_set": "A",
      "stage": "1-only",
      "res": "640x1024",
      "status": "no_filename"
    }
  ],
  "learning": {
    "passed_count": 3,
    "failed_count": 2,
    "best_pastel": "4-2",
    "next_round_hint": "auto-determine based on round learning"
  }
}