KugelAudio
Real-time text-to-speech model you can self-host on your own cluster
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KugelAudio is a real-time text-to-speech model with sub-60-millisecond latency, built for voice agents that need to feel like a live conversation. It covers 24 European languages and can clone a voice from a 30-to-60-second sample.
Critically, it can be self-hosted in a customer's own cluster rather than only behind an API, which matters when audio data has to stay on a private network. It ships with adapters for LiveKit, Pipecat, and Vapi, and SDKs for Python, JavaScript, and Java.
It is aimed at teams building voice agents in Europe who need very low latency and the option to keep speech data on their own infrastructure.
AI-assisted draft, human-reviewed before publishing — see how we choose & review tools.
Why we picked it
KugelAudio made the cut for the self-hosting option most voice-AI tools don't offer — sub-60ms latency behind an API is common, but running the same model on your own cluster matters a lot when audio data legally can't leave your infrastructure.
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