Local TTS model

Higgs TTS 3 4B

Catalogue summary: Boson AI's newer conversational TTS checkpoint for local voice agents. It supports multilingual expressive speech, zero-shot voice cloning, inline emotion, style, prosody and sound-effect control, plus local serving through SGLang-Omni or vLLM-Omni.

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

GPU recommendedtext-to-speech generation102 languagesBoson Higgs TTS 3 Research and Non-Commercial License
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Catalogue quality
9.7/10
Catalogue speed
8/10
Model size
9.32 GB
Voices
Zero-shot voice cloning from reference audio and transcript

Can Higgs TTS 3 4B run locally?

Higgs TTS 3 4B 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.

Boson Higgs TTS 3 Research and Non-Commercial License license. Review upstream restrictions before commercial use.

cloningstreamingmultilingualemotioncontrollabledialogue

Audio profile

Cat. quality
9.7
Cat. speed
8
Audio
9.2

Best fit

Higgs TTS 3 4B is best for local voice cloning and expressive speech generation.

Hardware: gpu

Model details

Type
Local TTS model
Family
higgs
Latency
low
Formats
transformerssafetensorsvllmsglang
Languages
multilingual
Context
4.65B BF16 params, 9.32GB safetensors storage, 24 kHz output, 8,192 token context

Install locally

01
Check runtimeConfirm the backend supports transformers, safetensors, vllm, sglang 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
  • GPU recommended local workflows
  • cloning, streaming, 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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