Text to speech

Silero TTS

Lightweight Russian speech synthesis that runs on a regular CPU. Version v5 added CIS languages and languages of Russia's peoples: Tatar, Bashkir, Yakut, Kazakh and others.

Developer
Silero, Russia
First release
Feb 2022
Latest release
Nov 2025
Sizes
tens of megabytes
License
Commercial use with conditionsMain models are CC BY-NC (non-commercial); the base models for CIS languages, v5_cis_base, are MIT
Russian
Supported
Running
On your own serverAlso runs without a GPU
Industries
Customer support, Public sector, Education
Deploy on your server GitHub

What it does

  • Voicing voice bot replies
  • Reading texts in Russian
  • Voices in the languages of Russia's peoples
  • Voicing notifications

Where it is used

Voice botsPublic sector and regionsEducationAccessibility for the visually impaired

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. v5 для языков СНГ
  2. Silero TTS v5 (русский)
  3. Silero TTS в pip-пакете (v3)

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.
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.

Frequently asked questions

Can Silero TTS be used in a commercial project?

With conditions. License: Main models are CC BY-NC (non-commercial); the base models for CIS languages, v5_cis_base, are MIT. Restrictions vary — region, company revenue, attribution requirements. Have a lawyer check the terms before a commercial launch.

What hardware does Silero TTS 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 Silero TTS support Russian?

Yes, Russian is listed on the model card.

Where can I download Silero TTS and what does it cost?

The Silero TTS 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.

Comparisons

Similar models

Text to speechPiperRhasspy / Open Home Foundation · USACommercial use with conditions

Very fast speech synthesis that runs even on a Raspberry Pi. Ready-made voices in 35+ languages, including several Russian ones.

DetailsText to speechQwen3-TTSAlibaba (Qwen) · ChinaCommercial use allowed

Speech synthesis in 10 languages, including Russian: voice cloning from 3 seconds, ready-made voices and creating a voice from a text description.

DetailsText 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.

Details

Source: github.com/snakers4/silero-models. Data checked against the model card on 22 Sep 2026. Have a lawyer review the license before commercial launch.