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MOSS-TTS Nano

Apache-2.0 (code) · weight terms require review

Compact CPU speech generation with streaming and voice cloning.

Compact CPU speech generation with streaming and voice cloning. Supports 48 kHz stereo through a separate audio tokenizer. Follow the ONNX CPU guide for lightweight deployment; language coverage depends on the checkpoint.

Hear MOSS-TTS Nano

MOSS-TTS Nano 100M · official ONNX CPU checkpoint · synthetic Bella reference · Same three scripts across the directory.

Run it yourself

Best for: Compact CPU speech generation with streaming and voice cloning.

Before you choose: Supports 48 kHz stereo through a separate audio tokenizer. Follow the ONNX CPU guide for lightweight deployment; language coverage depends on the checkpoint. The model card does not clearly specify a separate weight license; verify redistribution terms. In this unedited fixed-seed sample, the emotional sentence repeats at the end. Audition your own scripts for repetition.

No comparable hardware benchmark verified. Check the official setup for your device.

Details reviewed 2026-09-14. Hardware figures are estimates unless a benchmark is linked.

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Voices

1 voice
Female
Bella referencedefault
American

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.”

Run MOSS-TTS Nano

git clone https://github.com/OpenMOSS/MOSS-TTS-Nano.git
cd MOSS-TTS-Nano
pip install -e .

Sources & setup details

MOSS-TTS Nano FAQ

Do I need a GPU to run MOSS-TTS Nano?

MOSS-TTS Nano supports CPU inference. Speed depends on your processor, runtime, and text.

Can MOSS-TTS Nano clone voices?

Yes — MOSS-TTS Nano supports voice cloning from reference audio.

What license is MOSS-TTS Nano released under?

MOSS-TTS Nano is released under the Apache-2.0 (code) · weight terms require review license. Always check the repository for the exact terms — some models license code and weights separately.

What languages does MOSS-TTS Nano support?

MOSS-TTS Nano supports English, Chinese.

Is there a hosted MOSS-TTS Nano API?

OpenSpeech Cloud is accepting production-access interest for MOSS-TTS Nano, but this model is not hosted in the beta. Use the official repository for current deployment options.