AEmotionStudio/higgs-tts-3-models

Higgs TTS 3 (4B) — mirror for MAESTRO

Unmodified, sha256-verified mirror of bosonai/higgs-tts-3-4b (Boson AI), kept by AEmotionStudio so the MAESTRO DAW can fetch the checkpoint on demand. Nothing here is fine-tuned, quantised or re-packed.

File	Purpose
model.safetensors (+ .index.json)	4B talker (Qwen3-4B backbone + fused 8-codebook audio head) and the bundled Higgs audio tokenizer (tied.embedding.modality_embeddings.0.model.*)
config.json	HiggsMultimodalQwen3ForConditionalGeneration config
tokenizer.json, tokenizer_config.json	Qwen2 text tokenizer with the `<
PROMPTING.md	Boson's control-tag placement guide
LICENSE, NOTICE	The governing license and the attribution notice required by its §IV(a)

License — please read

Boson Higgs TTS 3 Research and Non-Commercial License (Boson AI USA, Inc.).

• Research and personal / hobbyist use: permitted.
• Creator Use Grant: digital creators may create, publish and monetise podcasts, videos, audiobooks and social posts made with the model, provided they credit "Boson AI's Higgs Audio" (in the audio or in the accompanying text, e.g. "This audio was created with Boson AI's Higgs Audio — https://www.boson.ai/higgs-audio").
• Hosting the model as a service, embedding it in a product or application made available to third parties, or reselling / redistributing derivatives requires a separate commercial license from Boson AI (contact@boson.ai).
• Prohibited: cloning or impersonating a real person's voice without their explicit, verifiable consent; fraud or deception; election-related deception; biometric surveillance; training other generative models on the outputs.

By downloading these files you accept the LICENSE in this repository. MAESTRO shows the same terms in-app and asks for acknowledgement before the first generation.

Citation

@misc{bosonai_higgs_audio_tts_v3_2026,
  title  = {Higgs TTS 3: Conversational Speech for Voice AI from Boson AI},
  author = {Boson AI},
  year   = {2026},
  howpublished = {https://huggingface.co/bosonai/higgs-tts-3-4b},
}