Kyutai TTS
CC-BY-4.0Word-level streaming TTS built for live voice agents
Kyutai TTS pairs a 1B backbone with a 600M depth transformer to stream audio at the word level, generating 12.5Hz frames fast enough for real-time conversational agents. Voice cloning is deliberately disabled — it only speaks from a fixed set of precomputed voice embeddings, a safety choice that trades flexibility for guardrails against impersonation.
Hear Kyutai TTS
Standardized samples are pending for this release. See the official sources below for the author’s demo.
Kyutai TTS · Reference-based · Same three scripts across the directory.
Best for: Word-level streaming TTS built for live voice agents
Before you choose: Compare the samples with your own use case. Check the linked documentation for code, weight, and voice license terms.
Details awaiting a fresh review. Hardware figures are estimates unless a benchmark is linked.
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No samples yet
Every model in this directory is read against the same three scripts so voices can be compared honestly — Kyutai TTS’s samples just haven’t been generated yet.
Contribute samples on GitHub →Run Kyutai TTS
pip install moshiSources & setup details
Kyutai TTS FAQ
Do I need a GPU to run Kyutai TTS?
The directory lists roughly 8 GB of VRAM as a historical estimate. Check the model documentation for your checkpoint and runtime.
Can Kyutai TTS clone voices?
No — Kyutai TTS uses preset voices. Browse the voice-cloning category for models that clone from reference audio.
What license is Kyutai TTS released under?
Kyutai TTS is released under the CC-BY-4.0 license. Always check the repository for the exact terms — some models license code and weights separately.
What languages does Kyutai TTS support?
Kyutai TTS supports English, French.
Is there a hosted Kyutai TTS API?
OpenSpeech Cloud is accepting production-access interest for Kyutai TTS, but this model is not hosted in the beta. Use the official repository for current deployment options.