Supertonic: Lightning-Fast, On-Device Multilingual TTS
Discover Supertonic, a powerful, open-source text-to-speech system that brings high-quality, multilingual voice synthesis directly to your device. By leveraging ONNX Runtime, Supertonic eliminates the need for cloud APIs, ensuring total privacy and near-instant performance. Whether you are a developer working with Python, C++, Rust, or web technologies, this lightweight engine offers 31-language support and superior reading accuracy for complex text. Learn how this 99M parameter model outperforms larger alternatives in speed and efficiency, making it the perfect choice for edge computing, mobile apps, and browser-based projects. Explore the future of local, private, and lightning-fast speech generation today.
Experience the Future of Private Speech Synthesis
In an era where most AI services rely on heavy cloud infrastructure, Supertonic emerges as a game-changer for developers and privacy-conscious users. It is a lightning-fast, on-device text-to-speech (TTS) system designed to deliver high-quality audio synthesis without a single API call.
Why Supertonic Stands Out
Supertonic is built on the ONNX Runtime, allowing it to run efficiently across a vast array of platforms, including desktop, mobile, and web browsers. With a model size of approximately 99M parameters, it is significantly more compact than 0.7B to 2B class models, making it ideal for edge deployment.
Key Features:
- Total Privacy: Zero network dependency means your data never leaves your device.
- Multilingual Support: Now supporting 31 languages, including English, Japanese, Korean, German, and more.
- High Accuracy: Superior handling of complex text, such as financial expressions, phone numbers, and technical units, where larger models often fail.
- Cross-Platform: Ready-to-use examples for Python, Node.js, C++, Rust, Swift, Java, C#, and Flutter.
Performance That Matters
Supertonic 3 is not just about being small; it is about being smart. By utilizing advanced techniques like Length-Aware Rotary Position Embedding (LARoPE) and self-purifying flow matching, the system achieves competitive Word Error Rates (WER) while maintaining a minimal runtime footprint. Whether you are building a browser extension, an e-reader app, or an IoT device, Supertonic provides the speed and stability required for real-time applications.
Getting Started
Getting up and running is straightforward. For Python users, you can install the SDK via pip:
pip install supertonic
Once installed, generating speech is as simple as:
from supertonic import TTS
tts = TTS(auto_download=True)
wav, duration = tts.synthesize("Hello, this is a local, private voice.", lang="en")
tts.save_audio(wav, "output.wav")
Join the Ecosystem
Supertonic is already powering innovative projects like the TLDRL Chrome extension, PageEcho e-reader, and various voice-to-voice chatbots. With its permissive MIT license for code and OpenRAIL-M for models, it is the perfect foundation for your next AI-driven project.
Explore the Supertonic GitHub repository to dive into the documentation and start building your own on-device voice applications today.