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Chatterbox

MIT

ElevenLabs-tier quality, MIT licensed, voice cloning from a clip

Chatterbox is Resemble AI's open-source TTS model — a 0.5B-parameter system with zero-shot voice cloning from a few seconds of reference audio and a unique emotion-exaggeration control. In blind tests it's frequently preferred over leading commercial systems. Outputs include Resemble's PerTh watermark.

Voices

1 voice
Female
Defaultdefault
american

The scripts

Neutral
“The quick brown fox jumps over the lazy dog near the riverbank.”
Emotional
“I can't believe you actually did it. This is incredible!”
Numbers & Dates
“On March 14th, 2025, the team raised $4.2 million at a 38% margin.”

Install

pip install chatterbox-tts

Chatterbox FAQ

Do I need a GPU to run Chatterbox?

For practical speeds, yes — plan on roughly 8 GB of VRAM. If you'd rather not manage a GPU, hosted access to every model in this directory is coming via OpenSpeech Cloud.

Can Chatterbox clone voices?

Yes — Chatterbox supports voice cloning from reference audio.

What license is Chatterbox released under?

Chatterbox is released under the MIT license. Always check the repository for the exact terms — some models license code and weights separately.

What languages does Chatterbox support?

Chatterbox supports English, Spanish, French, German, Italian, Portuguese, Japanese, Chinese, Korean, Arabic, Hindi, Russian, Turkish, Dutch, Polish, SV, Indonesian, Thai, Vietnamese, HE, Czech, EL, RO.

Is there a hosted Chatterbox API?

Yes — OpenSpeech Cloud is launching hosted, pay-per-minute access to Chatterbox and every other model in this directory. No CUDA, Docker, or GPU needed.