LLM Reference

Using Higgs Audio v3 TTS on Boson AI API

Implementation guide · Higgs Audio · Boson AI

ServerlessOpen Weights

Quick Start

  1. 1
    Create an account at Boson AI API and generate an API key.
  2. 2
    Use the Boson AI API SDK or REST API to call higgs-audio-v3-tts — see the documentation for request format.

Code Examples

See Boson AI API documentation for integration details.

About Boson AI API

Boson AI's hosted API for Higgs Audio TTS and STT models. Currently in free public preview with rate limits. Commercial licensing terms not yet disclosed.

Pricing on Boson AI API

Capabilities

Audio

About Higgs Audio v3 TTS

Higgs Audio v3 TTS is Boson AI's 4B-parameter text-to-speech model released June 4, 2026. It supports 102 languages (85 at production quality with WER/CER <5%), zero-shot voice cloning, and inline control tokens for emotion (21 types), style (singing/shouting/whispering), sound effects, and prosody. Audio output is 24kHz MP3 or PCM. Open weights available under a non-commercial license; hosted API is in free public preview.

Model Specs

Released2026-06-04
Parameters4B
Context8k
ArchitectureDecoder Only

Provider

Boson AI API

Boson AI