Welcome to Boson AI

Choose the Higgs API for live conversation, generated speech, or talking-avatar video.

Boson AI provides three developer APIs for interactive voice, generated speech, and avatar video. Start with the outcome you need—the products use different inputs, outputs, and interaction models.

What do you want to build?

Higgs Realtime

Use Higgs Realtime for a persistent session that listens, handles interruptions and tools, and streams a response.

Higgs TTS 3

Convert text into natural speech for playback, files, or an audio stream. No conversational session required.

Higgs Avatar

Generate talking-head video from a still image and driving audio or text.

Compare the APIs

Product	Input	Output	Interaction model	Best for
Higgs Realtime	Live audio or text	Streaming audio or text	Persistent, two-way session	Voice agents, interruptions, and tool use
Higgs TTS 3	Text	Generated audio	One request or audio stream	Narration, voiceovers, and speech playback
Higgs Avatar	Still image plus audio or text	Generated video	Video job or fragmented MP4 stream	Presenters, characters, and talking-head video

Start building

Try the Realtime quickstart

Play your first streamed Higgs Realtime response with Python.

Set up authentication

Create an API key, store it safely, and choose server or client-side authentication.