Higgs Audio

Open Apache-2.0 audio foundation model for expressive speech and multi-speaker dialogue

What Higgs Audio does

  • Open Apache-2.0 audio foundation model for expressive speech and multi-speaker dialogue
  • Zero-shot voice cloning and background-music-aware generation
  • Weights on Hugging Face

Higgs Audio — straight answers

What is Higgs Audio?

Higgs Audio is listed under AI Voice & Speech, in the Content & Media Generation category on Flocci AI Tools. Open Apache-2.0 audio foundation model for expressive speech and multi-speaker dialogue. It is free, with no paid plan attached, and it lives at github.com.

Is Higgs Audio free?

Higgs Audio is listed as fully free — there is no paid tier attached to it in the catalog. That makes it one of the 397 entries on Flocci AI Tools with no upgrade path built in.

Can I use Higgs Audio in a browser, or is there an app?

Higgs Audio needs to be installed or self-hosted — it doesn't run in a browser tab. It is available on self-hosting and an API.

What can Higgs Audio do?

Higgs Audio does 3 things the catalog singles out: Open apache-2.0 audio foundation model for expressive speech and multi-speaker dialogue; zero-shot voice cloning and background-music-aware generation; weights on hugging face.

What is the best free alternative to Higgs Audio?

Copilot Audio Expressions is the closest free alternative: it sits in the same AI Voice & Speech sub-category and is free. Kokoro Web, Zonos and Chatterbox (Resemble AI) also start free. The full list is on the alternatives page.

See the full list →

Higgs Audio alternatives

Compare all alternatives →

ElevenLabs

AI Voice & Speech
freemium
  • Most natural text-to-speech and voice cloning
  • Dubbing into 30+ languages
  • Voice design and a huge voice library
  • Free monthly characters

Murf AI

AI Voice & Speech
trial
  • Studio-quality voiceovers for videos
  • Sync voice with slides and media
  • Voice changer and cloning
  • Free trial minutes

Cartesia

AI Voice & Speech
freemium
  • Ultra-low-latency real-time voice (Sonic)
  • Ideal for voice agents and calls
  • Instant voice cloning
  • Free tier for developers

Hume AI

AI Voice & Speech
freemium
  • Emotionally expressive voice interface (EVI)
  • Detects and responds to tone
  • Customizable empathic voices
  • Free developer credits

Fish Audio

AI Voice & Speech
freemium
  • 15-second voice cloning claimed near-perfect fidelity
  • S2.1 Pro real-time emotionally-controllable voice model, free to start for devs
  • Bundles TTS, voice cloning, STT and a full voice-agent stack in one platform

Speechify

AI Voice & Speech
freemium
  • Free tier includes unlimited basic TTS at up to 1.5x speed with 10 voices
  • Scan & Listen turns physical text/photos into audio
  • AI Podcasts and Voice AI Assistant bundled into Premium beyond plain reading

Head-to-head comparisons