{
  "schema_version": 1,
  "family": "fireredtts3",
  "display_name": "FireRedTTS3",
  "description": "FireRedTTS3 family for Base zero-shot voice cloning and Instruct instruction-conditioned TTS, voice design, semantic edit, and acoustic edit with Qwen3 autoregressive hidden-state generation, FireRed DiT latent patch flow, and RedAE waveform decoding.",
  "category": "tts",
  "status": "experimental",
  "tasks": [
    "tts",
    "clone",
    "design"
  ],
  "modes": [
    "offline"
  ],
  "languages": [
    "Chinese",
    "English",
    "Cantonese",
    "Japanese",
    "Korean",
    "Spanish",
    "French",
    "Russian",
    "Arabic",
    "Turkish",
    "Indonesian",
    "Portuguese",
    "Italian",
    "Dutch",
    "Vietnamese",
    "German",
    "Ukrainian",
    "Thai",
    "Polish",
    "Romanian",
    "Greek",
    "Czech",
    "Finnish",
    "Hindi",
    "ZH_Anhui",
    "ZH_Fujian",
    "ZH_Gansu",
    "ZH_Guizhou",
    "ZH_Hebei",
    "ZH_Henan",
    "ZH_Hubei",
    "ZH_Hunan",
    "ZH_Jiangxi",
    "ZH_Liaoning",
    "ZH_Minnan",
    "ZH_Ningxia",
    "ZH_Shaanxi",
    "ZH_Shandong",
    "ZH_Shanghai",
    "ZH_Shanxi",
    "ZH_Sichuan",
    "ZH_Tianjin",
    "ZH_Wenzhou",
    "ZH_Wu",
    "ZH_Yunnan"
  ],
  "runtime": {
    "tags": [
      "gguf"
    ]
  },
  "dependencies": [],
  "capabilities": {
    "tts": [
      "speaker_reference",
      "style_control"
    ],
    "clone": [
      "speaker_reference",
      "style_control"
    ],
    "design": [
      "voice_design"
    ]
  },
  "options": {
    "request": [
      {
        "name": "template_name",
        "type": "enum",
        "description": "Instruct template; defaults to acoustic_edit with input audio, otherwise instruct_tts.",
        "required": false,
        "values": [
          "instruct_tts",
          "voice_design",
          "semantic_edit",
          "acoustic_edit"
        ]
      },
      {
        "name": "reference_text",
        "type": "string",
        "description": "Transcript for the prompt audio.",
        "required": false
      },
      {
        "name": "instruct",
        "type": "string",
        "description": "FireRedTTS3 instruction for voice design or edit tasks.",
        "required": false
      },
      {
        "name": "language",
        "type": "string",
        "description": "Language tag used by FireRedTTS3.",
        "required": false,
        "default": "Chinese"
      },
      {
        "name": "text_chunk_size",
        "type": "int",
        "description": "Maximum Unicode codepoints per long-form text chunk; default 80 when hanzi, kana and Hangul outnumber other letters and digits (except edits), otherwise 600.",
        "required": false,
        "min": 1
      },
      {
        "name": "text_chunk_mode",
        "type": "enum",
        "description": "Framework text chunking mode.",
        "values": [
          "default",
          "tag_aware",
          "japanese",
          "endline"
        ],
        "required": false,
        "default": "default"
      },
      {
        "name": "num_inference_steps",
        "type": "int",
        "description": "FireRed DiT flow steps per generated latent patch.",
        "required": false,
        "min": 1,
        "default": 10
      },
      {
        "name": "guidance_scale",
        "type": "float",
        "description": "Positive guidance scale; defaults to 1.2 for voice-design/semantic-edit/acoustic-edit templates and 2 otherwise.",
        "required": false,
        "min": 0
      },
      {
        "name": "stop_threshold",
        "type": "float",
        "description": "Stop probability threshold for AR patch generation.",
        "required": false,
        "min": 0.0,
        "max": 1.0,
        "default": 0.5
      },
      {
        "name": "seed",
        "type": "int",
        "description": "Unsigned 32-bit sampling seed in [0, 4294967295]; defaults to 2 for voice design and 1234 otherwise.",
        "required": false,
        "min": 0,
        "max": 4294967295
      }
    ],
    "session": [
      {
        "name": "weight_type",
        "type": "enum",
        "description": "FireRedTTS3 weight storage type; default native.",
        "preset": "weight_type_full",
        "required": false,
        "default": "native"
      },
      {
        "name": "graph_arena_mb",
        "type": "int",
        "description": "Main runtime graph arena size in MiB; default 1024.",
        "required": false,
        "min": 1,
        "default": 1024
      },
      {
        "name": "helper_graph_arena_mb",
        "type": "int",
        "description": "Helper graph arena size in MiB; default 256.",
        "required": false,
        "min": 1,
        "default": 256
      },
      {
        "name": "weight_context_mb",
        "type": "int",
        "description": "Weight loading context size in MiB; default 512.",
        "required": false,
        "min": 1,
        "default": 512
      },
      {
        "name": "reference_cache_slots",
        "type": "int",
        "description": "Prepared reference-audio cache slots; set 0 to disable reuse. Applies only to Base; Instruct does not use this cache.",
        "required": false,
        "min": 0,
        "default": 4
      },
      {
        "name": "mem_saver",
        "type": "bool",
        "description": "Release cached runtime graphs after each request to reduce peak VRAM; default false.",
        "required": false,
        "default": false
      }
    ],
    "load": []
  },
  "packages": [
    {
      "id": "fireredtts3_instruct_orig",
      "display_name": "FireRedTTS3 Instruct Orig GGUF",
      "format": "gguf",
      "precision": "orig",
      "target_directory": "FireRedTTS3-Instruct-GGUF",
      "files": [
        "FireRedTTS3-Instruct-GGUF/fireredtts3-instruct-orig.gguf"
      ],
      "strip_prefix": "FireRedTTS3-Instruct-GGUF",
      "download": {
        "kind": "huggingface_snapshot",
        "repo": "audio-cpp/audio.cpp-gguf",
        "revision": "main",
        "gated": false
      }
    },
    {
      "id": "fireredtts3_instruct_q8_0",
      "display_name": "FireRedTTS3 Instruct Q8_0 GGUF",
      "default": true,
      "format": "gguf",
      "precision": "q8_0",
      "target_directory": "FireRedTTS3-Instruct-GGUF",
      "files": [
        "FireRedTTS3-Instruct-GGUF/fireredtts3-instruct-q8_0.gguf"
      ],
      "strip_prefix": "FireRedTTS3-Instruct-GGUF",
      "download": {
        "kind": "huggingface_snapshot",
        "repo": "audio-cpp/audio.cpp-gguf",
        "revision": "main",
        "gated": false
      }
    },
    {
      "id": "fireredtts3_base_orig",
      "display_name": "FireRedTTS3 Base Orig GGUF",
      "format": "gguf",
      "precision": "orig",
      "target_directory": "FireRedTTS3-Base-GGUF",
      "files": [
        "FireRedTTS3-Base-GGUF/fireredtts3-base-orig.gguf"
      ],
      "strip_prefix": "FireRedTTS3-Base-GGUF",
      "download": {
        "kind": "huggingface_snapshot",
        "repo": "audio-cpp/audio.cpp-gguf",
        "revision": "main",
        "gated": false
      }
    },
    {
      "id": "fireredtts3_base_q8_0",
      "display_name": "FireRedTTS3 Base Q8_0 GGUF",
      "format": "gguf",
      "precision": "q8_0",
      "target_directory": "FireRedTTS3-Base-GGUF",
      "files": [
        "FireRedTTS3-Base-GGUF/fireredtts3-base-q8_0.gguf"
      ],
      "strip_prefix": "FireRedTTS3-Base-GGUF",
      "download": {
        "kind": "huggingface_snapshot",
        "repo": "audio-cpp/audio.cpp-gguf",
        "revision": "main",
        "gated": false
      }
    }
  ],
  "ui": {
    "recommended_package": "fireredtts3_instruct_q8_0",
    "tags": [
      "TTS",
      "Clone",
      "Design",
      "GGUF"
    ],
    "docs": [
      "docs/models/fireredtts3.md",
      "docs/gguf.md"
    ]
  },
  "sources": [
    {
      "format": "gguf",
      "roots": {
        "model": ".",
        "weights": "$gguf"
      },
      "files": {
        "redae_config": "model:redae/config.json",
        "tokenizer_json": "model:text_tokenizer/tokenizer.json",
        "tokenizer_config": "model:text_tokenizer/tokenizer_config.json",
        "vocab_json": "model:text_tokenizer/vocab.json"
      },
      "optional_files": {
        "base_config": "model:fireredtts3_base/config.json",
        "instruct_config": "model:fireredtts3_instruct/config.json"
      },
      "tensors": {
        "redae_weights": {
          "source": "weights:",
          "prefix": "redae"
        }
      },
      "optional_tensors": {
        "base_weights": {
          "source": "weights:",
          "prefix": "base"
        },
        "campplus_weights": {
          "source": "weights:",
          "prefix": "campplus"
        },
        "instruct_weights": {
          "source": "weights:",
          "prefix": "instruct"
        }
      }
    }
  ]
}