{
  "base_model": "Qwen/Qwen3-1.7B",
  "bits_per_weight": 2.7767,
  "compressed_at_utc": "2026-04-29T17:58:03Z",
  "compression_notes": "Compressed via UltraCompress row-overlay quantization at the v17hi 2.798-bpw operating point. See https://sipsalabs.com for method overview. Full method is the subject of pending USPTO patent applications. This artifact ships in dual format: model.safetensors (FP16 reconstruction, transformers-compatible) and model.uc.bin (packed binary at 2.7871-bpw on-disk, loadable via `pip install ultracompress`). Round-trip verified between the two formats.",
  "converter_script": "scripts/publish/convert_v17hi_to_hf.py",
  "files": {
    "model.safetensors": {
      "sha256": "404d96f7ec7a8bca23e9f80b35e2c61366ed1c81762c1a206e874a6fd4207e28",
      "size_bytes": 3441185296
    },
    "model.uc.bin": {
      "sha256": "e42ee0fa9da5070733087e5fab8950c8332c4bbeaa207e566057c4609d31006c",
      "size_bytes": 490984295
    }
  },
  "formats": {
    "fp16_reconstruction": {
      "loader": "transformers",
      "notes": "FP16 weights equivalent to a 2.7871-bpw decode; loadable directly via transformers.from_pretrained.",
      "path": "model.safetensors",
      "size_bytes": 3441185296
    },
    "packed_v17hi": {
      "loader": "ultracompress",
      "notes": "Packed binary at the actual 2.7871-bpw on-disk size; load via `pip install ultracompress`. Round-trip verified bit-equivalent to the substitute_v17 path on Qwen3-1.7B WikiText-103 PPL within 0.0976% (under the 0.1% pass threshold).",
      "path": "model.uc.bin",
      "round_trip_verified_ppl_diff_pct": 0.0976,
      "size_bpw_on_disk": 2.7871,
      "size_bytes": 490984295
    }
  },
  "license_name": "Sipsa Labs Research and Evaluation License v1.0",
  "license_notice": "Use of this model is governed by the Sipsa Labs Research and Evaluation License. See LICENSE for full terms. Commercial, OEM, or enterprise use requires a separate license from Sipsa Labs.",
  "method": "row-overlay-quantization",
  "method_track": "Track A",
  "patent_pending": true,
  "provisional_application_numbers": [
    "64/049,511",
    "64/049,517"
  ],
  "publisher": "Sipsa Labs, Inc.",
  "publisher_contact": "legal@sipsalabs.com",
  "uc_version": "0.1.3"
}