Last updated: 11/10/2026Last verified: 2026-11-10
<p>Open-source text-to-speech and voice-cloning toolkit with Zonos Voice Studio, an in-browser WebGPU playground, native runtimes, and a paid hosted speech API. Design voices and steer emotion, pace, and delivery for narration, games, and voice assistants.</p><ul><li>Generate multilingual speech and clone voices from a reference audio sample</li><li>Use Zonos Voice Studio or the lightweight voice-cloning page in a WebGPU browser</li><li>Design voice identity and steer emotion, pace, and word-level delivery</li><li>Run local MLX, CUDA, or C++/ggml runtimes, or use the separately billed hosted speech API</li></ul>
Details
Platform
WebmacOSWindowsLinuxAPI
Features
- Generate multilingual speech and clone voices from a reference audio sample
- Use Zonos Voice Studio or the lightweight voice-cloning page in a WebGPU browser
- Design voice identity and steer emotion, pace, and word-level delivery
- Run local MLX, CUDA, or C++/ggml runtimes, or use the separately billed hosted speech API
Languages
enzhjakodeesfritpt
Best for
Developers building local or self-hosted speech and voice-assistant workflowsGame and narration creators experimenting with character voices and expressive speechTeams comparing an open local TTS stack with a separately priced hosted API
Known limitations
- Local software is free, with Apache-2.0 model weights and MIT runtime code; hosted inference is separately billed at $10 per 1M UTF-8 bytes
- The browser playground needs WebGPU and an approximately 1.9 GB initial model download, cached in that browser
- Voice identity and expression controls are generation targets, not guarantees; outputs need listening and review
- Local execution uses your own hardware; published device latency figures are vendor measurements, not our own tests
Alternatives
ElevenLabs — Hosted voice generation, cloning, and dubbing platform
VoiceStudio — Broader local desktop workflow for dubbing, transcription, and audiobooks
