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 399 entries on Flocci AI Tools with no upgrade path built in.

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?

Chatterbox (Resemble AI) is the closest free alternative: it sits in the same AI Voice & Speech sub-category and is free. Copilot Audio Expressions, CosyVoice and F5-TTS 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

PlayHT (PlayAI)

AI Voice & Speech
freemiumLeaving soon
  • Realistic, low-latency text-to-speech
  • Voice cloning and voice agents
  • 800+ voices, many languages
  • Free trial words

Murf AI

AI Voice & Speech
freemiumLeaving soon
  • 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

Head-to-head comparisons