Zonos TTS Online

What makes Zonos interesting

Most open TTS models converge on the same recipe: a transformer backbone generating audio tokens at 24kHz. Zonos-v0.1 broke from that twice. Its hybrid variant swapped much of the transformer for an SSM (Mamba-style) backbone, and both variants output at 44kHz — closer to CD quality than to the 24kHz most of the field settled on.

Zyphra released both variants under Apache-2.0 with weights on Hugging Face, which made Zonos a fixture in open-TTS comparisons. The trade-off is the usual one: running it yourself requires a CUDA GPU, and the setup is involved enough that most people never actually hear the model before deciding whether to invest in it.

Hear it before you set it up

This page exists to remove that gap. The generator above calls the hybrid variant on cloud GPUs — the same deployment that serves this site’s free tier — so the audio you get is the model’s real output, not a cherry-picked demo reel.

Three preset voices are available: two American (female and male) and one British female. Run the same sentence through each, then through Kokoro or Chatterbox from the voice picker, and you will have a better comparison than any benchmark table gives you.

Try it here vs. self-host

The short version:

• Use this page to evaluate the model, produce short clips, or check whether 44kHz output matters for your use case
• Self-host when you want Zonos’s voice cloning, need volume beyond short clips, or want to fine-tune
• Each clip here is capped at 400 characters by the hosted deployment — for long text, Kokoro on the same free tier goes to 5,000