Supertonic Flutter Example

This example demonstrates how to use Supertonic 2 in a Flutter application using ONNX Runtime.

Note: This project uses the flutter_onnxruntime package (https://pub.dev/packages/flutter_onnxruntime). At the moment, only the macOS platform has been tested. Although the flutter_onnxruntime package supports several other platforms, they have not been tested in this project yet and may require additional verification.

📰 Update News

2026.01.06 - 🎉 Supertonic 2 released with multilingual support! Now supports English (en), Korean (ko), Spanish (es), Portuguese (pt), and French (fr). Demo | Models

2025.12.10 - Added 6 new voice styles (M3, M4, M5, F3, F4, F5). See Voices for details

2025.12.08 - Optimized ONNX models via OnnxSlim now available on Hugging Face Models

2025.11.23 - Added and tested macos support.

Multilingual Support

Supertonic 2 supports multiple languages. Select the appropriate language from the dropdown:

English (en): Default language
한국어 (ko): Korean
Español (es): Spanish
Português (pt): Portuguese
Français (fr): French

Requirements

Flutter SDK version ^3.5.0

Running the Demo

flutter clean
flutter pub get
flutter run -d macos