{
  "schema_version": "fastvideo-fasth3-mlx-conversion-v1",
  "published_repo_id": "FastVideo/FastVideo-FastH3-4-step-Preview-v1-Dense-DataFree-MLX-INT4",
  "source": {
    "repo_id": "FastVideo/FastVideo-FastH3-4-step-Preview-v1-Dense-DataFree",
    "revision": "f624f08c6c279ab43534c003e556fc5b295b6558",
    "checkpoint_step": 1000,
    "attention": "dense",
    "checkpoint_content_aggregate_sha256": "3f56129acb9749f2ae4e52bab176c09406bf027d68c6f020cf5ff99e651b1609",
    "transformer_shards_verified": 13
  },
  "converter": {
    "fastvideo_commit": "cf6a00b9be4675602126d6aeab902ad9a74810ea",
    "script": "scripts/checkpoint_conversion/convert_minimax_h3_mlx.py",
    "command": "python scripts/checkpoint_conversion/convert_minimax_h3_mlx.py --model-root <snapshot>/transformer --out <output> --formats 'int8 int6 int4'",
    "mlx_version": "0.32.2",
    "python_version": "3.12.13",
    "hardware": "Apple M4 Max",
    "unified_memory_bytes": 38654705664,
    "combined_wall_seconds": 164.62,
    "process_max_rss_bytes": 11317051392,
    "peak_memory_footprint_bytes": 27108979504
  },
  "format": {
    "conversion_seconds": 46.1,
    "peak_mlx_gib": 14.8,
    "weights_file": "mlx_h3_dit.safetensors",
    "weights_bytes": 11532219083,
    "weights_sha256": "dcee86c17197c621a0e3d3ba9541cb6ef5764cd0c258beb7b044fb12b217e948",
    "manifest_file": "mlx_h3_dit.json",
    "manifest_sha256": "25c89f37f53292c4abd8bbb70098eaad54783a1b1fc5f0f55ed779a8c85efb56",
    "quantization": {
      "mode": "affine",
      "bits": 4,
      "group_size": 64
    },
    "tensor_count": 1464,
    "vsa_capable": false
  },
  "validation": {
    "source_shard_size_and_sha256": "passed, 13 of 13",
    "safetensors_header_open": "passed",
    "manifest_quantization": "passed",
    "adaln_cache_timesteps": 8,
    "generation": "passed: 832x480, 124 frames, full H3 VAE",
    "runtime_checkpoint_load": "passed for int8, int6, and int4",
    "runtime_structure": "50 transformer blocks, 2 refiner blocks, 50 AdaLN block tables"
  }
}