This model requires you to accept the MIT license terms before download.
Description
Chatterbox — Resemble AI open-source text-to-speech model with voice cloning capability and natural prosody. MIT license.
Tags
At a glance
| Kind | text-to-speech model |
|---|---|
| Precision | float16 |
| Container size | 2.0 GiB |
| Weights inside | 2.0 GiB |
| Components | 4 |
| Licence | MIT |
| Origin | ResembleAI/chatterbox @ 5bb1f6ee58e5 |
What is inside the container
A .nbx container packs every part of chatterbox — 4 components with weights, graphs and runtime settings — so one file is all the runtime needs.
| Component | Blocks | Layers | Weights |
|---|---|---|---|
| s3gen | 0 | — | 1008 MiB |
| t3_cfg | 0 | — | 1016 MiB |
| ve | 0 | — | 5.4 MiB |
| cond_enc | 0 | — | 8.6 MiB |
Default settings
The values the container ships with. They apply when you do not pass your own.
- Guidance scale
- 1.5
- Sample rate (Hz)
- 24000
- Temperature
- 0.8
- Top-p
- 0.95
Memory needed
The weights of chatterbox take 2.0 GiB in float16. That is the floor for the memory the runtime has to place, spread over the devices it finds; activations come on top and grow with the size and length you ask for. A measured peak per device class is not published for this model yet.
Verify what you downloaded
Every download carries its SHA-256, and the file endpoint sends it in the X-NBX-SHA256 header. The container is 2.0 GiB (2,177,718,374 bytes).
$ sha256sum chatterbox.nbx
f577583a30e5861b6d819fa15685cb80811f4668eaf199992e786ea7c175830e
Questions
What is chatterbox?
A text-to-speech model by ResembleAI, distributed as a float16 .nbx container and licensed MIT.
How big is the download?
2.0 GiB, of which 2.0 GiB are weights.
How do I run it?
Install the runtime from the download page, then use the commands under “CLI Usage” below: neurobrix import ResembleAI/chatterbox, then neurobrix serve --model chatterbox.
CLI Usage
$ neurobrix import ResembleAI/chatterbox
$ neurobrix serve --model chatterbox
$ neurobrix run --prompt "your prompt here"
$ neurobrix stop