# Chatterbox

> Chatterbox is a family of text-to-speech models from Resemble AI: Turbo (350M, English, paralinguistic tags like \[laugh\]), Nano (110M, CPU-oriented, about 3x realtime on 8 CPU cores) and Multilingual V3 (500M, 23 languages). It clones a voice from a short reference clip. Code and weights are MIT. Every output carries an imperceptible Perth watermark. It does not do speech recognition or full voice agents.

- Repository: https://github.com/resemble-ai/chatterbox
- Official docs: https://github.com/resemble-ai/chatterbox#readme
- Checked: 2026-10-15

## What it replaces
- ElevenLabs: Speech generation, Voice cloning (partial). Covers speech generation and zero-shot voice cloning; no speech recognition or hosted agent platform. Output is watermarked.
- Descript: Voice cloning, Speech generation (partial). Voice cloning and text-to-speech only; no transcript-based audio or video editing.

## Facts, with sources

| Question | Status | Answer | Source | Checked |
|---|---|---|---|---|
| Runs on my machine? | Confirmed | Yes, on GPU (CUDA), Apple MPS or CPU | https://github.com/resemble-ai/chatterbox#usage | 2026-10-15 |
| Code licence | Confirmed | MIT | https://github.com/resemble-ai/chatterbox/blob/master/LICENSE | 2026-10-15 |
| Model weights licence | Confirmed | MIT (Chatterbox, Turbo, Nano and Multilingual weights on Hugging Face) | https://huggingface.co/ResembleAI/chatterbox | 2026-10-15 |
| Commercial use | Confirmed | Yes, MIT code and weights (generated audio is watermarked) | https://huggingface.co/ResembleAI/chatterbox | 2026-10-15 |
| Paid services needed? | Partial | None required; Resemble AI's paid hosted TTS service is offered as an optional extra | https://github.com/resemble-ai/chatterbox#readme | 2026-10-15 |
| Hardware | Partial | Nano runs on CPU at about 3x realtime on 8 cores; no VRAM or RAM minimums stated | https://github.com/resemble-ai/chatterbox#-model-zoo | 2026-10-15 |
| Operating systems | Partial | Tested on Debian 11 Linux; code shows an Apple "mps" device option; Windows not mentioned | https://github.com/resemble-ai/chatterbox#installation | 2026-10-15 |
| Setup effort | Confirmed | Easy, pip install chatterbox-tts | https://github.com/resemble-ai/chatterbox#installation | 2026-10-15 |

GitHub: 26996 stars, 3630 forks, last push 2026-07-21, archived: no.
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Source: RepoQuarry (https://repoquarry.dev/projects/chatterbox). Data licence: CC BY 4.0. Quotes are from project documentation and belong to their authors.