supertonic and supertonic-py
The Python package is the official client library for the core ONNX-based TTS engine, making them ecosystem siblings where supertonic-py provides programmatic access to the functionality exposed by supertonic.
About supertonic
supertone-inc/supertonic
Lightning-Fast, On-Device, Multilingual TTS — running natively via ONNX.
Supports voice customization through Voice Builder for creating edge-deployable speaker profiles, and provides multi-runtime SDKs (Python, Node.js, C++, Swift, iOS, Flutter, etc.) enabling deployment from Raspberry Pi to browsers via WebGPU/WASM. Achieves extreme performance with just 66M parameters and configurable inference steps, reaching 167× real-time factor on consumer hardware while maintaining complete on-device privacy without cloud dependencies.
About supertonic-py
supertone-inc/supertonic-py
Lightning-Fast, On-Device TTS — running natively via ONNX.
Supports 5 languages with natural text handling for complex inputs (numbers, dates, abbreviations), and uses a lightweight 66M-parameter architecture optimized for ONNX inference across CPU, WebGPU, and GPU hardware. Achieves 167× real-time factor on consumer devices (M4 Pro) through configurable inference steps and batch processing, with automatic model downloads from Hugging Face.
Related comparisons
Scores updated daily from GitHub, PyPI, and npm data. How scores work