Text to speech

Chatterbox

Speech synthesis with voice cloning and adjustable expressiveness. The multilingual version supports 23 languages, including Russian; Turbo and Flash are sped up for live dialogue.

Developer
Resemble AI, USA
First release
Apr 2025
Latest release
May 2026
Sizes
about 350M – 500M
License
Commercial use allowedMIT
Russian
Supported
Ready-made builds
GGUF, MLX (Apple)
Running
On your own serverAlso runs without a GPU
Industries
Customer support, Media and production, Marketing and content
Deploy on your server Hugging Face GitHub

What it does

  • Voice for a bot or assistant
  • Cloning a brand voice
  • Voicing videos
  • Multilingual voiceover

Where it is used

Call centersMedia and marketingGamesVoice bots

Hardware requirements

LaptopLaptop or regular PC, up to 8 GB of VRAM — smaller versions
fits
1 GPUOne GPU with 16–80 GB — mid-size versions
no versions
ClusterServer with several GPUs — flagship versions
no versions

Versions

  1. Chatterbox Flash
  2. Chatterbox Turbo
  3. Chatterbox

How to run it

On your own serverWeights are downloaded from Hugging Face and served with vLLM (load and API) or llama.cpp (modest hardware). The model then runs in a closed network with no per-request fees.Hugging Face
How much hardware you needCalculate the VRAM for the model size, context length and number of concurrent requests.Open the hardware calculator

I can set this up end to end: pick the model size, deploy it on your server and connect it to your systems. Quantization compresses a model so it takes less video memory and runs on more modest hardware. Answers change slightly, so quality is checked on your own examples.

Frequently asked questions

Can Chatterbox be used in a commercial project?

Yes. License: MIT. It allows commercial use, but it is still worth having a lawyer review the license before launch.

What hardware does Chatterbox need?

At minimum: Laptop or regular PC, up to 8 GB of VRAM — smaller versions. Some versions also run on an ordinary CPU, without a GPU. You can calculate the exact VRAM for your model size and context in the hardware calculator.

Does Chatterbox support Russian?

Yes, Russian is listed on the model card.

Where can I download Chatterbox and what does it cost?

The Chatterbox weights are open and free to download. You only pay for the hardware it runs on and for the setup. Source links are at the bottom of this page.

How I deploy it for clients

  1. SelectionI pick the model size for your task and hardware and test it on your examples.
  2. DeploymentI deploy it on your server or in a closed network and provide an API.
  3. Fine-tuningI fine-tune it on your data (LoRA) or connect a knowledge base — whichever is cheaper for the task.
  4. IntegrationI connect it to your CRM, ERP, bot, website or team chat and set up monitoring.

Similar models

Text to speechCosyVoice / Fun-CosyVoiceAlibaba (Tongyi, FunAudioLLM) · ChinaCommercial use allowed

Speech synthesis with voice cloning from a short sample and streaming output for live dialogue. Version 3 supports 9 languages, including Russian.

DetailsText to speechF5-TTSShanghai Jiao Tong University and partners · ChinaNon-commercial only

A voice cloning model that needs only a few seconds of a sample, in English and Chinese. The community has released many fine-tuned versions for other languages, including Russian.

DetailsText to speechKokorohexgrad (independent developer) · not disclosedCommercial use allowed

A tiny speech synthesis model (82M) that sounds on par with large ones. Runs on a regular CPU; English and a few other languages, no Russian.

Details

Source: huggingface.co/ResembleAI/chatterbox-flash. Data checked against the model card on 22 Sep 2026. Have a lawyer review the license before commercial launch.