{
  "benchmark": "CarPixAI 2026 Public VDP Photo Benchmark",
  "status": "completed_observational_sample",
  "rubric_version": "v1.0-2026-07-28",
  "collection_date": "2026-07-28",
  "model_assisted_review": "google/gemini-2.5-flash",
  "sample_size": 108,
  "dealer_domains": 9,
  "states": 8,
  "regions": [
    "Great Plains",
    "Midwest",
    "South Central",
    "Southeast"
  ],
  "segment_counts": {
    "independent_group": 18,
    "independent": 36,
    "franchise": 54
  },
  "platform_counts": {
    "Remora": 99,
    "Other_or_unknown": 9
  },
  "total_score": {
    "mean_0_to_12": 7.79,
    "median_0_to_12": 8,
    "minimum": 3,
    "maximum": 12,
    "band_counts": {
      "usable_7_to_9": 53,
      "weak_4_to_6": 26,
      "strong_10_to_12": 25,
      "high_risk_0_to_3": 4
    },
    "band_percentages": {
      "usable_7_to_9": 49.1,
      "weak_4_to_6": 24.1,
      "strong_10_to_12": 23.1,
      "high_risk_0_to_3": 3.7
    }
  },
  "photo_count": {
    "mean": 28.4,
    "median": 27.5,
    "fewer_than_12_count": 10,
    "at_least_20_count": 83,
    "at_least_20_percent": 76.9
  },
  "category_stats": {
    "hero_image": {
      "mean_score_0_to_2": 0.98,
      "pass_2_count": 19,
      "pass_2_percent": 17.6,
      "partial_1_count": 68,
      "fail_0_count": 21
    },
    "gallery_completeness": {
      "mean_score_0_to_2": 1.68,
      "pass_2_count": 83,
      "pass_2_percent": 76.9,
      "partial_1_count": 15,
      "fail_0_count": 10
    },
    "condition_proof": {
      "mean_score_0_to_2": 1.31,
      "pass_2_count": 43,
      "pass_2_percent": 39.8,
      "partial_1_count": 56,
      "fail_0_count": 9
    },
    "background_consistency": {
      "mean_score_0_to_2": 1.11,
      "pass_2_count": 22,
      "pass_2_percent": 20.4,
      "partial_1_count": 76,
      "fail_0_count": 10
    },
    "mobile_crop": {
      "mean_score_0_to_2": 1.34,
      "pass_2_count": 54,
      "pass_2_percent": 50,
      "partial_1_count": 37,
      "fail_0_count": 17
    },
    "visible_edit_safety": {
      "mean_score_0_to_2": 1.36,
      "pass_2_count": 55,
      "pass_2_percent": 50.9,
      "partial_1_count": 37,
      "fail_0_count": 16
    }
  },
  "top_hero_issue_codes": [
    {
      "code": "text_overlay",
      "count": 57,
      "percent": 52.8
    },
    {
      "code": "cluttered_background",
      "count": 42,
      "percent": 38.9
    },
    {
      "code": "visible_edit_artifact",
      "count": 14,
      "percent": 13
    },
    {
      "code": "harsh_glare",
      "count": 4,
      "percent": 3.7
    },
    {
      "code": "tight_crop",
      "count": 3,
      "percent": 2.8
    },
    {
      "code": "placeholder",
      "count": 3,
      "percent": 2.8
    }
  ],
  "limitations": [
    "Directional observational sample, not a probability sample of all US dealerships or all live used vehicles.",
    "Dealer-owned VDPs were sampled from nine public sitemaps across eight states using a deterministic URL hash rank.",
    "The sample is intentionally balanced between independent and franchise listings, so aggregate percentages are not market-share weighted.",
    "Most sampled websites used the same inventory website/image-delivery platform, which may cluster gallery and presentation behavior.",
    "Scores use the published hero plus representative images sampled from the beginning, middle, and end of each gallery; not every image received multimodal review.",
    "Gallery completeness is based on detected image count; sampled visual evidence may miss a proof photo elsewhere in the full gallery.",
    "Visible edit safety records observable warning signs only. It cannot prove an image is unedited or that every vehicle detail matches an unavailable source photo.",
    "Model-assisted scores can contain classification error. A documented stratified second-pass QA review is published separately; no formal human inter-rater study was performed.",
    "The benchmark does not measure or imply leads, appointments, sales, time-to-sale, price realization, or causal business impact.",
    "Listings change and may be removed after the collection date."
  ]
}