---
title: Kitten TTS Demo
emoji: 😻
colorFrom: indigo
colorTo: green
sdk: gradio
sdk_version: 6.6.0
app_file: app.py
pinned: false
python_version: "3.12"
short_description: Kitten TTS 2 plus the open-source 0.8 models
---

# Kitten TTS Demo

Type text, pick a model and a voice, and hear it.

- **Kitten TTS 2**, KittenML's newest and most expressive model: voices in ten languages (more in preview),
  emotion tags such as `[joyful]`, sounds such as `<laugh>` and `(((emphasis)))`. It comes from the
  [KittenML API](https://platform.kittenml.com), so it needs no GPU.
- **Kitten TTS 0.8 Mini, Micro and Nano**, the open-source models (Apache 2.0). They are loaded when the Space
  starts and run on its CPU.

The Space needs one secret, set under **Settings → Variables and secrets**:

- `KITTENML_API_KEY`: a KittenML API key, used for Kitten TTS 2. The 0.8 models work without it.

The Kitten TTS 2 voice list is read from the API, so new voices appear without a code change. Like the demo on
kittenml.com, each visitor gets 4 requests a minute (12 per network) and up to 500 characters per request, and
Kitten TTS 2 adds an audio allowance of 5 minutes every six hours (20 per network).

The open-source models are on [GitHub](https://github.com/KittenML/KittenTTS) and
[Hugging Face](https://huggingface.co/KittenML).