whatisgithub

What is silero-models?

snakers4/silero-models — explained in plain English

Analysis updated 2026-06-26

5,917Jupyter NotebookAudience · developerComplexity · 2/5LicenseSetup · easy

In one sentence

Silero Models is a collection of pre-trained text-to-speech models that convert written text into natural-sounding spoken audio in Russian and a range of post-Soviet and Indic languages, loadable in a few lines of Python.

Mindmap

mindmap
  root((silero-models))
    What it does
      Text to spoken audio
      Multiple voices
      Multiple sample rates
    Language Focus
      Russian primary
      Post-Soviet languages
      Indic languages
    Features
      Automatic stress marks
      Homograph handling
      SSML markup support
    Setup
      PyTorch Hub
      pip install
      CPU and GPU
Click or tap to explore — scroll the page freely

Code map

Detail Auto

An interactive map of this repo's files and how they connect — its source is parsed live in your browser. Click Visualize to build it.

filefunction / class

What do people build with it?

USE CASE 1

Generate natural-sounding Russian speech audio from text for a non-commercial app, podcast tool, or accessibility feature.

USE CASE 2

Build a multilingual voice assistant that covers Russian, Ukrainian, Kazakh, and other post-Soviet languages.

USE CASE 3

Convert written content to audio files for Azerbaijani, Armenian, or other supported Indic or CIS-region languages.

USE CASE 4

Use SSML markup to control pacing and emphasis in generated speech for a narration or e-learning project.

What is it built with?

PythonPyTorch

How does it compare?

snakers4/silero-modelsmrdbourke/tensorflow-deep-learningofa-sys/chinese-clip
Stars5,9175,9035,900
LanguageJupyter NotebookJupyter NotebookJupyter Notebook
Setup difficultyeasymoderatemoderate
Complexity2/53/53/5
Audiencedeveloperdeveloperresearcher

Figures from each repo's GitHub metadata at analysis time.

How do you get it running?

Difficulty · easy Time to first run · 30min

Commercial use of the main Russian models requires a separate license arrangement, only the CIS regional language models are MIT licensed for free commercial use.

Main Russian models use Creative Commons Attribution-NonCommercial 4.0, free for non-commercial use, but commercial applications require a separate arrangement with the team. Some regional language models are MIT licensed.

So what is it?

Silero Models is a collection of pre-trained text-to-speech models that convert written text into spoken audio. You give the library a string of text and it returns an audio file with a natural-sounding voice reading it aloud. The project emphasizes that setup should be minimal: in most cases, loading a model and generating speech takes only a few lines of Python code. The models are built with a particular focus on Russian and other languages from the post-Soviet region, though support has expanded to include Azerbaijani, Armenian, Bashkir, Belarusian, Georgian, Kazakh, Kyrgyz, Tajik, Ukrainian, Uzbek, and several Indic languages. For Russian specifically, the models handle stress marks and homographs automatically, meaning the system can figure out how a word should be pronounced even when the same spelling has multiple pronunciations depending on context. Several generations of models are available (V3, V4, V5), with the V5 series being the most current. Each version supports multiple named voices and can output audio at different sample rates to suit different quality needs. The newer models also support SSML, a markup language that lets you control pacing, emphasis, and pronunciation in the generated speech. The models can be loaded through PyTorch Hub or installed as a Python package via pip. They run on both CPU and GPU and are designed to be fast enough for practical use without requiring specialized hardware. The license for the main Russian models is Creative Commons Attribution-NonCommercial 4.0, meaning free use is allowed but commercial applications require a separate arrangement. Some of the CIS regional language models are available under the more permissive MIT license. The full README is longer than what was shown.

Copy-paste prompts

Prompt 1
Using Silero Models V5 via PyTorch Hub, write a Python script that takes a Russian text string and saves the spoken audio as a WAV file. Show the complete minimal code including model loading.
Prompt 2
I am building a voice assistant that needs to support Russian and Ukrainian. How do I select different voices and languages in Silero Models, and what is the difference between the V3, V4, and V5 model generations?
Prompt 3
I want to control pacing and add pauses in Silero TTS output using SSML. Show me an example SSML string that adds a pause mid-sentence and emphasizes one word, and explain how to pass it to the model.
Prompt 4
What is the license for using Silero Russian TTS models in a commercial product, and what steps would I need to take to get permission for commercial use?

Frequently asked questions

What is silero-models?

Silero Models is a collection of pre-trained text-to-speech models that convert written text into natural-sounding spoken audio in Russian and a range of post-Soviet and Indic languages, loadable in a few lines of Python.

What language is silero-models written in?

Mainly Jupyter Notebook. The stack also includes Python, PyTorch.

What license does silero-models use?

Main Russian models use Creative Commons Attribution-NonCommercial 4.0, free for non-commercial use, but commercial applications require a separate arrangement with the team. Some regional language models are MIT licensed.

How hard is silero-models to set up?

Setup difficulty is rated easy, with roughly 30min to a first successful run.

Who is silero-models for?

Mainly developer.

Open on GitHub → Ask about another repo

This repo across BitVibe Labs

Verify against the repo before relying on details.