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expressive

Zonos

Apache-2.0

44kHz studio-quality output with emotion control

Zonos from Zyphra generates native 44kHz audio — noticeably crisper than the 22-24kHz most open models produce — with zero-shot cloning from a short reference and explicit control over emotions like happiness, sadness, and anger. It ships in both pure-transformer and SSM-hybrid variants.

Voices

1 voice
Neutral
Reference-baseddefault
—
NeutralEmotionalNumbers & Dates

The scripts

Neutral
“The quick brown fox jumps over the lazy dog near the riverbank.”
Emotional
“I can't believe you actually did it. This is incredible!”
Numbers & Dates
“On March 14th, 2025, the team raised $4.2 million at a 38% margin.”

Install

git clone https://github.com/Zyphra/Zonos

Zonos FAQ

Do I need a GPU to run Zonos?

For practical speeds, yes — plan on roughly 8 GB of VRAM. If you'd rather not manage a GPU, hosted access to every model in this directory is coming via OpenSpeech Cloud.

Can Zonos clone voices?

Yes — Zonos supports voice cloning from reference audio.

What license is Zonos released under?

Zonos is released under the Apache-2.0 license. Always check the repository for the exact terms — some models license code and weights separately.

What languages does Zonos support?

Zonos supports English, Japanese, Chinese, French, German.

Is there a hosted Zonos API?

Yes — OpenSpeech Cloud is launching hosted, pay-per-minute access to Zonos and every other model in this directory. No CUDA, Docker, or GPU needed.