{
  "id": "chatterbox",
  "name": "Chatterbox",
  "category": "music_audio",
  "description": "Generate expressive speech from text with Resemble AI’s local text-to-speech family, including multilingual and reference-voice options.",
  "useCases": [
    "Prototype narration or spoken interfaces from your own scripts",
    "Create multilingual voice prototypes using a voice you have permission to use"
  ],
  "repoUrl": "https://github.com/resemble-ai/chatterbox",
  "docsUrl": "https://github.com/resemble-ai/chatterbox#installation",
  "demo": {
    "url": "https://resemble-ai.github.io/chatterbox_demopage/",
    "label": "Hear Resemble AI’s speech examples",
    "evidenceType": "creator_demo",
    "note": "Creator-curated expressive, voice-agent and multilingual samples; playback and model output were not independently tested."
  },
  "license": {
    "code": "MIT",
    "weights": "MIT, as declared in the official base and Turbo model cards",
    "caveat": "The actual GitHub LICENSE was inspected. The base weights repository declares MIT in its model card but contains no separate LICENSE file; verify any separately downloaded variant. Voice permission and other rights remain separate.",
    "url": "https://github.com/resemble-ai/chatterbox/blob/master/LICENSE",
    "weightsUrl": "https://huggingface.co/ResembleAI/chatterbox"
  },
  "pricing": {
    "summary": "No license fee for self-hosted use; local or rented inference compute is your cost.",
    "caveat": "Resemble’s hosted TTS service is a separate paid offering. No hosted rate, latency guarantee or universal minimum VRAM has been independently verified here."
  },
  "platforms": [
    "Linux (Debian tested upstream)",
    "macOS example (MPS / CPU)",
    "Python",
    "Local Gradio interface"
  ],
  "setupDifficulty": "moderate",
  "setupRequirements": [
    "Upstream reports testing with Python 3.11 on Debian 11; current package metadata requires Python 3.10 or later",
    "Install the PyTorch/audio dependency stack and download the selected model checkpoints",
    "CUDA examples and a Mac MPS/CPU example are provided; choose hardware for the exact variant and measure performance",
    "Reference-voice synthesis requires an audio clip you have rights and permission to use"
  ],
  "limitations": [
    "Language coverage and controls differ between English, multilingual and smaller variants",
    "Reference audio can affect accent and pacing; listen to output before publishing",
    "Generated audio includes the project’s PerTh watermark",
    "Creator performance claims and demo samples are not independent measurements"
  ],
  "evidenceCheckedDate": "2026-10-14",
  "testStatus": "not_tested",
  "sources": [
    {
      "title": "Official README: variants, setup, tips and watermarking",
      "url": "https://github.com/resemble-ai/chatterbox",
      "evidenceCheckedDate": "2026-10-14"
    },
    {
      "title": "Actual code LICENSE: MIT",
      "url": "https://github.com/resemble-ai/chatterbox/blob/master/LICENSE",
      "evidenceCheckedDate": "2026-10-14"
    },
    {
      "title": "Official base model card: MIT weights declaration",
      "url": "https://huggingface.co/ResembleAI/chatterbox",
      "evidenceCheckedDate": "2026-10-14"
    },
    {
      "title": "Official base model file listing",
      "url": "https://huggingface.co/ResembleAI/chatterbox/tree/main",
      "evidenceCheckedDate": "2026-10-14"
    },
    {
      "title": "Official Turbo model card: MIT weights declaration",
      "url": "https://huggingface.co/ResembleAI/chatterbox-turbo",
      "evidenceCheckedDate": "2026-10-14"
    },
    {
      "title": "Current package requirements",
      "url": "https://github.com/resemble-ai/chatterbox/blob/master/pyproject.toml",
      "evidenceCheckedDate": "2026-10-14"
    },
    {
      "title": "Official Mac device example",
      "url": "https://github.com/resemble-ai/chatterbox/blob/master/example_for_mac.py",
      "evidenceCheckedDate": "2026-10-14"
    },
    {
      "title": "Creator speech sample page",
      "url": "https://resemble-ai.github.io/chatterbox_demopage/",
      "evidenceCheckedDate": "2026-10-14"
    }
  ],
  "categoryLabel": "Music & Audio",
  "tags": [
    "text to speech",
    "narration",
    "multilingual",
    "voice"
  ],
  "card": {
    "cost": "Local or rented compute",
    "setup": "Python + model download"
  },
  "setup": {
    "summary": "Python + model download",
    "requirements": [
      "Upstream reports testing with Python 3.11 on Debian 11; current package metadata requires Python 3.10 or later",
      "Install the PyTorch/audio dependency stack and download the selected model checkpoints",
      "CUDA examples and a Mac MPS/CPU example are provided; choose hardware for the exact variant and measure performance",
      "Reference-voice synthesis requires an audio clip you have rights and permission to use"
    ]
  },
  "evidence": {
    "status": "documentation_reviewed",
    "demoType": "creator_demo",
    "independentlyTested": false,
    "note": "Official source documentation reviewed; no repository installed or executed."
  },
  "releaseDate": null,
  "releaseDateNote": "Not researched; the evidence check date does not indicate a recent release."
}