Higgs Audio
Higgs Audio V2 from Boson AI is a free open-source tool for lifelike voice generation and understanding with emotion-rich cloning multilingual support and API access.
Overview
Think of it as an AI voice tool that talks with feeling. You feed it text plus a few style hints and it gives back clear emotional speech that feels almost real. Not just robotic TTS stuff either but layered conversations with interruptions tone shifts accents and emotion baked in.
And yeah it’s open-source. Free to download and run on your own gear from a Jetson Nano to an RTX 4090.
Boson AI made this. Led by Alex Smola Mu Li and Xingjian Shi. These folks already have some serious cred in the space and Higgs Audio V2 dropped on July 22 2025. It's the follow-up to their earlier voice work with better fidelity more features and smoother handling of human emotion.
What it does
It talks. Like for real. Higgs Audio V2 builds full-blown conversations from plain text. It can copy voices so characters stay consistent. You can ask it to speak faster slower angrier softer. And it plays nice with music and emotion cues.
The output? 24 kHz audio that sounds like a real person. Actually like several real people talking to each other.
It also listens. Not just transcribes speech but figures out who's speaking and what they meant. It even catches emotion and intent in voice which is rare.
You can download the full pretrained model and run it yourself. Or use the web demo free via their site or Hugging Face. No paywall. No waiting list. No limits. Want something more custom? They’ll talk enterprise but that’s separate.
What it can do
- Generate group convos with overlaps and interruptions.
- Speak with emotion like frustration joy sarcasm.
- Clone voices so characters stay the same across scenes.
- Take tone/style directions mid-prompt.
- Output 24 kHz high-quality audio.
- Handle multiple languages like Chinese Korean Spanish.
- Run on small chips or big GPUs.
- Simultaneous speech and background music generation - a first for open audio foundation models
- API access and self-hosting options.
It also understands speech and mood using chain-of-thought logic. Think more human less guesswork.
Higgs Licence Conditions
The Boson Higgs Audio 2 Community License permits commercial use under certain conditions. Companies or individuals can use, modify, distribute, and create derivatives of the model, including for commercial purposes, as long as their product or service has fewer than 100,000 annual active users. If usage exceeds this limit, a separate commercial license must be obtained from Boson AI.
Derivatives must be named starting with “Higgs Audio 2,” and users retain ownership of derivative works, but not the original model. The license also requires attribution to both Boson and Meta and prohibits use of the model’s output to improve other large language models. The license is voided if the user initiates IP-related legal action against Boson or Meta.
Supported Languages
- Chinese
- English
- German
- Korean
Tags
Freeware Unknown License PC-based #Voice & AudioLinks
This tool is free to use when installed locally and is offered under Unknown License.
Users are impressed by the model’s voice cloning quality, especially compared to Chatterbox, though instruction-following is hit-or-miss. Many noted it's a big step forward for open-source TTS, with some concerns about licensing limits—commercial use kicks in at just 100k annual users.
People like its multi-speaker expressiveness and ability to handle English, Chinese, German and Korean, though they wish it supported more languages. A few tried it with short clips and found it responsive, but accent support is still patchy.
Some are curious about streaming and local API support, and one user confirmed it runs fine on a 3060 GPU using quantized version from GitHub. Others want Chatterbox-style UI compatibility and shared tips for local setup.
[Reddit: LocalLLama]
Generate audio following instruction.
<|scene_desc_start|>
Audio is recorded from a quiet room.
<|scene_desc_end|>
Input Text: Artificial intelligence is a life-changing, sometimes life-like phenomenon—but it’s not without its quirks. Take, for example, the AI assistant who confidently declared, 'I am definitely not plotting world domination—wink, wink.' It’s enough to make you laugh... nervously... This test was generated for AIcreators dot tools, your go-to destination for AI software made for creators, filmmakers, and educators. Compare ToolsGenerated on July 24, 2025:
Useful Links
No additional links available for this tool.
This page was last updated on July 26, 2025 at 3:58 AM