{
  "model_type": "chipoint",
  "task": "image-geolocation",
  "benchmark": "OSV-5M",
  "encoders": [
    {"tag": "so400m256", "name": "ViT-SO400M-16-SigLIP2-256", "pretrained": "webli", "loader": "open_clip", "dim": 1152},
    {"tag": "dinov3", "name": "facebook/dinov3-vitl16-pretrain-lvd1689m", "loader": "transformers", "dim": 1024, "preprocess": "Resize(256)->CenterCrop(224)", "pooling": "pooler_output"},
    {"tag": "gopt", "name": "ViT-gopt-16-SigLIP2-256", "pretrained": "webli", "loader": "open_clip", "dim": 1536}
  ],
  "head": {"arch": "Linear(D,1024)-GELU-Dropout(0.1)-Linear(1024,512)", "l2_normalized": true, "trained_with": "CosFace margin over KMeans geocells"},
  "gallery_images": 4900000,
  "retrieval": {"top_m_per_encoder": 200, "fused_top_k": 64, "fusion": "z-sum over union"},
  "consensus": {"density_weight": 0.3, "vote_gamma": 0.8, "lambda_1493km": 1.7, "mu_750km": 0.8, "bandwidth_km": [1492.7, 750.0], "gate_percentile": 60},
  "inference": "run_chipoint.py",
  "license": "cc-by-nc-4.0"
}