Text to speech

Zonos

Speech synthesis with voice cloning and fine control over emotion, speed and pitch.

Developer
Zyphra, USA
First release
Feb 2025
Latest release
Jun 2026
Sizes
about 1.6B
License
Commercial use allowedApache 2.0
Russian
Supported
Ready-made builds
GGUF
Running
On your own serverNeeds a GPU
Industries
Media and production, Marketing and content
Deploy on your server Hugging Face GitHub

What it does

  • Voice cloning
  • Emotional voiceover
  • Voicing videos

Where it is used

MediaMarketingGames

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. ZONOS2
  2. Zonos v0.1 (transformer, hybrid)

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 Zonos be used in a commercial project?

Yes. License: Apache 2.0. It allows commercial use, but it is still worth having a lawyer review the license before launch.

What hardware does Zonos need?

At minimum: Laptop or regular PC, up to 8 GB of VRAM — smaller versions. Without a GPU the model is not practical. You can calculate the exact VRAM for your model size and context in the hardware calculator.

Does Zonos support Russian?

Yes, Russian is listed on the model card.

Where can I download Zonos and what does it cost?

The Zonos 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 speechChatterboxResemble AI · USACommercial use allowed

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.

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 speechOrpheus TTSCanopy Labs · USACommercial use allowed

Language-model-based speech synthesis with lively intonation and emotional cues. Responds quickly, suitable for voice assistants. Mainly English.

Details

Source: huggingface.co/Zyphra/ZONOS2. Data checked against the model card on 22 Sep 2026. Have a lawyer review the license before commercial launch.