Zonos TTS is an advanced open-source text-to-speech model developed by Zyphra, trained on over 200,000 hours of diverse multilingual speech. It delivers highly expressive, natural-sounding speech across English, Japanese, Chinese, French, and German, outputting audio natively at 44kHz for studio-quality results.
The project offers two architectural variants: a transformer-based model and a hybrid model, both built on text normalization and phonemization via eSpeak followed by DAC token prediction. Users can clone a voice from a 10-30 second reference clip, use audio prefixes to elicit behaviors like whispering, and fine-tune speaking rate, pitch variation, maximum frequency, and emotions such as happiness, fear, sadness, and anger.
Zonos runs at about twice real-time speed on an RTX 4090, comes with a Gradio web interface, and is released under the Apache 2.0 license for commercial use. Its GitHub repository provides documentation, example scripts, and setup guides for developers and researchers building entertainment, virtual assistant, and accessibility applications.
Get more likes & reach the top of search results by adding this button on your site!
Get top updates in AI to your inbox every weekend. It's free!
