Local TTS model

Supertonic 3

Catalogue summary: Lightning-fast on-device TTS that runs with ONNX Runtime and no cloud call. Around 99M parameters, 31 languages, better reading stability and expression tags like laugh, breath and sigh.

Repository editorial metadata; verify comparative claims in the linked upstream material.

Edge readytext-to-speech generation31 languagesOpenRAIL-M
Choose an app

Start with Recommended. No terminal commands are shown.

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Desktop app links require the app to be installed. If nothing opens, LocalClaw will show app-download and model-file fallbacks.

Catalogue quality
8.8/10
Catalogue speed
9.8/10
Model size
0.2 GB
Voices
Preset voice styles + downloadable custom style embeddings

Official audio example

Play the official source sample directly below. The file remains on the project server and is not hosted by LocalClaw.

Can Supertonic 3 run locally?

Supertonic 3 can generate speech locally for private voice workflows. Use the verified setup options on this page; no terminal command is required to choose the right path.

OpenRAIL-M license. Review upstream restrictions before commercial use.

realtimelow-latencymultilingualemotion

Audio profile

Cat. quality
8.8
Cat. speed
9.8
Audio
9.1

Best fit

Supertonic 3 is best for fast on-device voice responses and local assistants.

Hardware: cpugpuappleedge

Model details

Type
Local TTS model
Family
supertonic
Latency
ultra-low
Formats
onnx
Languages
en, ko, ja, ar, bg, cs, da, de, el, es, et, fi, fr, hi, hr, hu, id, it, lt, lv, nl, pl, pt, ro, ru, sk, sl, sv, tr, uk, vi
Context
Open-weight ONNX model, 31 languages, practical local inference

Install locally

01
Check runtimeConfirm the backend supports onnx on your machine.
02
Open recommended setupUse the app and model links above. LocalClaw does not expose a terminal command.
03
Test locallyRun a short private audio prompt before moving into production workflows.

Good for

  • text-to-speech generation
  • Edge ready local workflows
  • realtime, low-latency, multilingual

Watch before shipping

  • Validate pronunciation, latency and artifacts with your own voice samples.
  • Review the upstream license and acceptable-use notes.
  • Benchmark on your target CPU, Apple Silicon or GPU setup.

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