{
  "family": "niagara_asr",
  "schema_version": 1,
  "display_name": "Niagara ASR",
  "description": "ABR Niagara English batch ASR state-space models with attention, greedy CTC decoding, and SentencePiece tokenization.",
  "category": "asr",
  "status": "supported",
  "tasks": [
    "asr"
  ],
  "modes": [
    "offline"
  ],
  "languages": [
    "en"
  ],
  "capabilities": {},
  "dependencies": [],
  "options": {
    "request": [
      {
        "name": "language",
        "type": "string",
        "description": "Recognition language; Niagara batch models are English-only.",
        "required": false,
        "default": "en"
      },
      {
        "name": "audio_chunk_mode",
        "type": "enum",
        "description": "Audio chunking mode.",
        "values": [
          "none"
        ],
        "required": false,
        "default": "none"
      }
    ],
    "session": [
      {
        "name": "weight_type",
        "type": "enum",
        "description": "Matmul weight storage type.",
        "preset": "weight_type_full",
        "required": false,
        "default": "native"
      },
      {
        "name": "graph_arena_mb",
        "type": "int",
        "description": "Inference graph arena size in MiB.",
        "required": false,
        "min": 64,
        "default": 1024
      },
      {
        "name": "weight_context_mb",
        "type": "int",
        "description": "Weight descriptor context size in MiB.",
        "required": false,
        "min": 16,
        "default": 256
      }
    ],
    "load": []
  },
  "runtime": {
    "tags": [
      "gguf",
      "cpu"
    ]
  },
  "ui": {
    "recommended_package": "niagara_19m_f32",
    "tags": [
      "ASR",
      "GGUF"
    ],
    "docs": [
      "docs/asr.md",
      "docs/gguf.md"
    ],
    "summary": "ABR Niagara compact English speech recognition."
  },
  "package_defaults": {
    "download": {
      "kind": "huggingface_snapshot",
      "repo": "audio-cpp/audio.cpp-gguf"
    }
  },
  "packages": [
    {
      "id": "niagara_19m_f32",
      "display_name": "Niagara 19M Batch English F32 GGUF",
      "default": true,
      "format": "gguf",
      "precision": "f32",
      "target_directory": "Niagara-ASR-GGUF",
      "files": [
        "Niagara-ASR-GGUF/niagara-19m-batch.en-f32.gguf"
      ],
      "strip_prefix": "Niagara-ASR-GGUF"
    },
    {
      "id": "niagara_38m_f32",
      "display_name": "Niagara 38M Batch English F32 GGUF",
      "format": "gguf",
      "precision": "f32",
      "target_directory": "Niagara-ASR-GGUF",
      "files": [
        "Niagara-ASR-GGUF/niagara-38m-batch.en-f32.gguf"
      ],
      "strip_prefix": "Niagara-ASR-GGUF"
    }
  ],
  "sources": [
    {
      "format": "gguf",
      "roots": {
        "model": ".",
        "weights": "$gguf"
      },
      "files": {
        "config": "model:config.json",
        "preprocessor_config": "model:preprocessor_config.json",
        "tokenizer_spm": "model:sentencepiece.model"
      },
      "tensors": {
        "weights": "weights:"
      }
    }
  ]
}