KittenTTS

# Kitten-TTS

<p align="center">
  <img alt="Kitten TTS" src="https://raw.githubusercontent.com/KittenML/KittenTTS/main/assets/kitten_tts_2_announcement.png" />
</p>

<p align="center">
  <a href="https://huggingface.co/spaces/KittenML/KittenTTS-Demo"><img src="https://img.shields.io/badge/Demo-Hugging%20Face%20Spaces-orange" alt="Hugging Face Demo"></a>
  <a href="https://discord.com/invite/VJ86W4SURW"><img src="https://img.shields.io/badge/Discord-Join%20Community-5865F2?logo=discord&logoColor=white" alt="Discord"></a>
  <a href="https://kittenml.com"><img src="https://img.shields.io/badge/Website-kittenml.com-blue" alt="Website"></a>
  <a href="LICENSE"><img src="https://img.shields.io/badge/License-Apache_2.0-green.svg" alt="License"></a>
</p>

> ## **New:** Free Kitten-TTS 2 API available at  [https://platform.kittenml.com](https://platform.kittenml.com/)

Kitten-TTS is a series of sota open-source text-to-speech models, built by KittenML. Its flagship model, **Kitten-TTS 2**, is a
1.7B-parameter 1-bit TTS model with in-context voice cloning and expression control. It provides SOTA quality while being so efficient that it runs realtime on CPUs and consumer GPU's!

The library also ships our existing [**lightweight V0.8 models**](docs/onnx-models.md),
15M-80M parameters, which run on CPU without a GPU. Both families load through the same
`KittenTTS(...)` constructor.

**Commercial support is available.** For integration assistance, custom voices, or enterprise licensing, [contact us](https://docs.google.com/forms/d/e/1FAIpQLSc49erSr7jmh3H2yeqH4oZyRRuXm0ROuQdOgWguTzx6SMdUnQ/viewform?usp=preview).


<img   alt="5325cae7-e2e1-4aad-8d53-caf93a268b36" src="https://raw.githubusercontent.com/KittenML/KittenTTS/main/assets/kitten_tts_2_features.png" />



## Table of Contents

- [Features](#features)
- [Available Models](#available-models)
- [Demo](#demo)
- [Quick Start](#quick-start)
- [Voice cloning](#voice-cloning)
- [Expression controls](#expression-controls)
- [Running on CPU](#running-on-cpu)
- [Running on a Mac](#running-on-a-mac)
- [Running with vLLM](#running-with-vllm)
- [Long text and streaming](#long-text-and-streaming)
- [Documentation](#documentation)
- [System Requirements](#system-requirements)
- [Commercial Support](#commercial-support)
- [Community and Support](#community-and-support)
- [License](#license)

## Features

- **Voice cloning** -- Clone any speaker from 5-30 seconds of audio, no fine-tuning
- **115 built-in voices** -- Including the eight from KittenTTS 0.8
- **Multilingual** -- 20 languages: English, Arabic, Chinese, French, German, Hindi, Italian, Portuguese, Russian, Spanish, Japanese, Korean, Turkish, Dutch, Swedish, Danish, Finnish, Swahili, Greek, Hebrew
- **Expression control** -- `[emotion]` tags, inline `<event>` tags, and `(((emphasis)))` spans
- **Decoding presets** -- Trade stability against expressiveness per request
- **Long-form text** -- Sentence-aware chunking with seamless joins
- **Text preprocessing**