{
  "ledger_version": "1.0.0",
  "model_id": "google-gemma-4-31b",
  "created_at": "2026-10-02T13:04:27+00:00",
  "snapshots": [
    {
      "snapshot_id": "5bbc2fb1c1b2-c968b9c208",
      "observed_at": "2026-10-02T12:26:49+00:00",
      "kind": "observed-baseline",
      "repository_sha": "5bbc2fb1c1b2c611d06e3d9f23c170ba21659d89",
      "evidence_hash": "c968b9c20835141f52927ab2997c485df2b91c4018c816ef3eff8ebdb52d9059",
      "verification_mode": "repository-revision-unchanged",
      "full_verified_at": "2026-10-02",
      "source_repository": "https://huggingface.co/google/gemma-4-31B",
      "sources": [
        {
          "type": "model_repository",
          "url": "https://huggingface.co/google/gemma-4-31B",
          "tier": "primary"
        },
        {
          "type": "model_api",
          "url": "https://huggingface.co/api/models/google/gemma-4-31B",
          "tier": "primary"
        },
        {
          "type": "model_card",
          "url": "https://huggingface.co/google/gemma-4-31B/blob/main/README.md",
          "tier": "primary",
          "available": true
        },
        {
          "type": "config",
          "url": "https://huggingface.co/google/gemma-4-31B/blob/main/config.json",
          "tier": "primary",
          "available": true
        },
        {
          "type": "license",
          "url": "https://ai.google.dev/gemma/docs/gemma_4_license",
          "tier": "primary-or-declared"
        }
      ],
      "fields": {
        "identity": {
          "name": "gemma-4-31B",
          "developer": "Google",
          "family": "gemma-4",
          "variant": "gemma-4-31B"
        },
        "model": {
          "parameters": "32.6824B",
          "total_parameters_billions": 32.682372656,
          "context_tokens": 262144,
          "context_display": "262,144 tokens",
          "modality": "Image + text → text"
        },
        "license": {
          "name": "Apache-2.0",
          "id": "apache-2.0",
          "url": "https://ai.google.dev/gemma/docs/gemma_4_license",
          "commercial_use_status": "allowed",
          "commercial_use_label": "Commercial use allowed under Apache-2.0 conditions"
        },
        "weights": {
          "repository": "https://huggingface.co/google/gemma-4-31B",
          "access": "public",
          "file_count": 3,
          "exact_files": [
            "model-00001-of-00002.safetensors",
            "model-00002-of-00002.safetensors",
            "model.safetensors.index.json"
          ],
          "formats": [
            "Safetensors"
          ],
          "precision": [
            "bf16"
          ]
        },
        "lineage": {
          "base_models": [],
          "base_status": "not-declared"
        },
        "training": {
          "recipe_status": "training-described-in-model-card",
          "data_status": "described-in-model-card",
          "datasets": []
        },
        "runtime": {
          "signals": [
            "Transformers",
            "llama.cpp"
          ]
        },
        "hardware": {
          "weight_only_gb": {
            "bf16_fp16": 65.36,
            "fp8_int8": 32.68,
            "int4": 16.34
          },
          "status": "estimated"
        },
        "hub": {
          "sha": "5bbc2fb1c1b2c611d06e3d9f23c170ba21659d89",
          "created_at": "2026-03-12T00:38:28.000Z",
          "last_modified": "2026-07-15T16:42:14.000Z"
        }
      }
    }
  ],
  "diffs": [],
  "model_name": "gemma-4-31B",
  "developer": "Google",
  "source_repository": "https://huggingface.co/google/gemma-4-31B",
  "current_repository_sha": "5bbc2fb1c1b2c611d06e3d9f23c170ba21659d89",
  "last_registry_check": "2026-10-03",
  "last_full_field_verification": "2026-10-02",
  "status": "active",
  "snapshot_count": 1,
  "diff_count": 0,
  "history_url": "https://openmodelweights.com/models/google-gemma-4-31b/history/",
  "diff_url": "https://openmodelweights.com/diff/google-gemma-4-31b/"
}
