Chatterbox

Chatterbox is a family of state-of-the-art open-source text-to-speech models by Resemble AI, released under the MIT license. The lineup includes the base English ChatterboxTTS, Chatterbox-Multilingual V3 (0.5B, 23 languages, cross-language voice cloning), a Single Language Pack of dedicated finetunes (Chinese, Latam/Spain Spanish, Brazilian/Portugal Portuguese), Chatterbox-Turbo (distilled 350M for low-latency voice agents), and Chatterbox-Nano (CPU-friendly). Standout features are zero-shot voice cloning from a short reference clip, emotion/intensity control, paralinguistic tags like [chuckle] and [laugh], and built-in PerTh neural watermarking on every output for provenance. Gradio demo apps ship in the repo for TTS, Turbo, voice conversion, and multilingual use.

Install from PyPI:

```bash

pip install chatterbox-tts

```

Developed and tested on Python 3.11 (Debian 11); dependency versions are pinned in pyproject.toml. Or install from source for hacking:

```bash

git clone https://github.com/resemble-ai/chatterbox.git

cd chatterbox && pip install -e .

```

English zero-shot cloning:

```python

from chatterbox.tts import ChatterboxTTS

import torchaudio as ta

model = ChatterboxTTS.from_pretrained(device="cuda") # or "cpu" / "mps"

wav = model.generate("Hello world", audio_prompt_path="ref_clip.wav")

ta.save("out.wav", wav, model.sr)

```

Low-latency Turbo: from chatterbox.tts_turbo import ChatterboxTurboTTS; ChatterboxTurboTTS.from_pretrained(device="cuda"). Multilingual V3: from chatterbox.mtl_tts import ChatterboxMultilingualTTS; ChatterboxMultilingualTTS.from_pretrained(device=device, t3_model="v3"), then generate(text, language_id="fr"). Model weights download from Hugging Face on first use.