What is Higgs Audio V2?
Go beyond the limitations of robotic text-to-speech. Higgs Audio V2 is a powerful, open-source audio foundation model designed for developers and researchers who need truly expressive and versatile audio generation. Pre-trained on over 10 million hours of diverse audio, it delivers nuanced, human-like results for a wide range of complex applications, directly out of the box without requiring any fine-tuning.
Key Features
🎤 Dynamic Multi-Speaker Dialogue Generation Generate natural, flowing conversations between multiple speakers within a single audio output. The model can intelligently assign distinct, appropriate voices based on the transcript or use specific reference voices you provide, making it ideal for creating realistic podcast segments, audiobook scenes, or application dialogues without complex post-production.
🗣️ High-Fidelity Zero-Shot Voice Cloning Instantly clone a voice from a brief audio sample and use it to generate new speech. This allows you to create custom voiceovers, personalize in-app audio, or maintain consistent narration with remarkable ease. The model effectively captures the unique vocal characteristics from the reference audio for an authentic result.
😊 Automatic Prosody and Emotion Adaptation Higgs Audio V2 inherently understands the context and emotion within your text. It automatically adjusts tone, pitch, and pacing to deliver speech that sounds genuinely emotional, inquisitive, or authoritative. This advanced capability is validated by its benchmark win rates of 75.7% over "gpt-4o-mini-tts" in the "Emotions" category.
🌐 Versatile Multilingual and Melodic Generation The model demonstrates capabilities that are rare in other systems. It can generate speech in multiple languages, enabling applications like live translation. Furthermore, it can even produce melodic humming in a cloned voice or simultaneously generate speech with accompanying background music, opening up new creative possibilities.
Why Choose Higgs Audio V2?
State-of-the-Art Performance, Zero Fine-Tuning: Higgs Audio V2 achieves top-tier results on established benchmarks like Seed-TTS Eval and ESD right away. Its sophisticated pre-training on our 10-million-hour AudioVerse dataset means you get exceptional expressiveness and capability without the time and expense of model fine-tuning.
Open-Source and Developer-Focused: As an open-source project, Higgs Audio V2 gives you full transparency and the freedom to build upon a powerful foundation. We provide clear installation instructions, multiple environment setups (including venv, conda, and uv), and practical code examples to help you get started quickly. For high-throughput needs, we also offer an OpenAI-compatible API server backed by the vLLM engine.
Conclusion
Higgs Audio V2 represents a significant step forward in expressive audio synthesis. By providing a powerful, performant, and open-source foundation, it empowers you to move beyond conventional TTS and build more dynamic, engaging, and human-like audio experiences.
Explore the repository to see the examples and get started today!
More information on Higgs Audio V2
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Higgs Audio V2 was manually vetted by our editorial team and was first featured on 2025-07-27.
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