{
  "release_date": "2026-08-04",
  "checkpoint": "Ref2VA/minimax-h3-ref2va-int8-lean-convrot-table-k16-g4097-quality21.safetensors",
  "bytes": 22484075856,
  "gib": 20.93992741405964,
  "sha256": "f4b2a8b4a53446f5d696a39deb693b09ac7ce37013793a8b19340644e38b154f",
  "tensor_keys": 872,
  "dtype_key_counts": {
    "F32": 282,
    "BF16": 250,
    "I8": 170,
    "U8": 170
  },
  "checks": {
    "safetensors_open": "pass",
    "int8_quant_blobs": "170/170, ConvRot group size 256",
    "bf16_main_policy": "30/30 present; independently selected Ref2VA policy exactly matches FL2VA",
    "nonquant_source_copies": "258/258 tensors, 4146503680 bytes, bitwise equal to raw Ref2VA HF",
    "adaln_table": "FP32 [4097, 16]; independent rebuild max absolute difference 4.547473508864641e-13",
    "midpoint_coordinate_relative_error": 2.1027385628258344e-6,
    "adaln_relative_error_19_timesteps": {
      "block_0": 3.9349262692667253e-7,
      "block_24": 4.4643704200098e-7,
      "block_49": 3.958584784413688e-7,
      "final": 3.423421333081933e-7
    },
    "official_pruned_adaln_relative_error_19_timesteps": {
      "block_0": 1.9679135584738106e-4,
      "block_24": 2.090581983793527e-4,
      "block_49": 2.110520872520283e-4,
      "final": 1.9624050764832646e-4
    },
    "comfyui_cpu_load": "pass on clean unmodified ComfyUI: ModelPatcher -> MiniMaxH3Model; table [4097,16]; no time_embedder",
    "comfyui_tested_commit": "14b05228cef127ce529bc0c08660770d4af3e9a8"
  },
  "sampled_main_matrix_proxy": {
    "method": "deterministic 64 output rows per matrix, all input columns, 200/200 main matrices",
    "official_absmax_mean_relative_error_percent": 0.934510859195143,
    "quality21_effective_mean_relative_error_percent": 0.7639428460970521,
    "relative_reduction_percent": 18.25211675389137,
    "selected_bf16_official_proxy_mean_percent": 1.0683710873126984,
    "remaining_int8_absmax_mean_percent": 0.9108884659979274,
    "remaining_int8_searched_scale_mean_percent": 0.8987562895259437,
    "remaining_int8_relative_reduction_percent": 1.3319058177657648,
    "warning": "This is a weight-reconstruction proxy, not an end-to-end generation or perceptual benchmark."
  },
  "not_yet_tested": [
    "GPU load through ComfyUI",
    "peak VRAM at a target resolution/frame count",
    "end-to-end Ref2VA generation",
    "same-seed visual/audio A/B against BF16 and official pruned checkpoints"
  ]
}