Model reference · open weights

SoulX-Singer

Audio Soul-AILab Text→speech 1 build Open weights 1k dl/mo

SoulX-Singer is an open-weight audio or speech model from Soul-AILab. SoulX-Singer (BF16) weighs 2.8 GB; the smallest configuration that runs it is RTX 3060 12 GB.

  • SoulX-Singer is a zero-shot singing voice synthesis model developed by Soul-AILab that generates realistic singing voices for unseen singers.
  • It supports melody-conditioned and score-conditioned control for precise pitch, rhythm, and expression.
  • The model is licensed under Apache 2.0 and supports English and Chinese.

Summary of the Soul-AILab/SoulX-Singer model card, 2026-10-01

What it is

Released bySoul-AILab
Released2026-02-06
VRAM2.8 GB for the weights

What it runs on

Memory and cards for SoulX-Singer (BF16)

2.8 GBweights, file size
1.6 GBruntime overhead
CardOne streamMemory
RTX 3060 12 GBfits11.6 GB
RTX 4060 Ti 16 GBfits15.4 GB
RTX 3090 24 GBfits23.4 GB
RTX 4090 24 GBfits23.4 GB
RTX 5090 32 GBfits31.0 GB
L40S 48 GBfits44.0 GB
A100 80 GBfits78.2 GB
H100 80 GBfits78.1 GB
RTX PRO 6000 Blackwell 96 GBfits93.8 GB
DGX Spark (GB10) 128 GB unifiedfits107 GB
H200 141 GBfits138 GB
B200 180 GBfits176 GB

From the model card

What Soul-AILab says about SoulX-Singer

Read the model card

SoulX-Singer is a high-fidelity, zero-shot singing voice synthesis model that enables users to generate realistic singing voices for unseen singers. It supports melody-conditioned (F0 contour) and score-conditioned (MIDI notes) control for precise pitch, rhythm, and expression.

For more details, please refer to the paper: SoulX-Singer: Towards High-Quality Zero-Shot Singing Voice Synthesis.

Sample Usage

1. Set Up Environment

git clone https://github.com/Soul-AILab/SoulX-Singer.git
cd SoulX-Singer
conda create -n soulxsinger -y python=3.10
conda activate soulxsinger
pip install -r requirements.txt

2. Download Pretrained Models

pip install -U huggingface_hub

# Download the SoulX-Singer SVS model
hf download Soul-AILab/SoulX-Singer --local-dir pretrained_models/SoulX-Singer

# Download models required for preprocessing
hf download Soul-AILab/SoulX-Singer-Preprocess --local-dir pretrained_models/SoulX-Singer-Preprocess

3. Run Inference

bash example/infer.sh

License

We use the Apache 2.0 license. Researchers and developers are free to use the codes and model weights of our SoulX-Singer. Check the license at LICENSE for more details.

Usage Disclaimer

This project provides a singing voice synthesis model for vocal generation capable of zero-shot voice cloning, intended for academic research, educational purposes, and legitimate applications, such as personalized vocal synthesis and assistive technologies.

Please note: We advocate for the responsible development and use of AI and encourage the community to uphold safety and ethical principles in AI research and applications. If you have any concerns regarding ethics or misuse, please contact us.

Citation

@misc{soulxsinger,
      title={SoulX-Singer: Towards High-Quality Zero-Shot Singing Voice Synthesis},
      author={Jiale Qian and Hao Meng and Tian Zheng and Pengcheng Zhu and Haopeng Lin and Yuhang Dai and Hanke Xie and Wenxiao Cao and Ruixuan Shang and Jun Wu and Hongmei Liu and Hanlin Wen and Jian Zhao and Zhonglin Jiang and Yong Chen and Shunshun Yin and Ming Tao and Jianguo Wei and Lei Xie and Xinsheng Wang},
      year={2026},
      eprint={2602.07803},
      archivePrefix={arXiv},
      primaryClass={eess.AS},
      url={https://arxiv.org/abs/2602.07803},
}

Contact Us

If you are interested in leaving a message to our work, feel free to email qianjiale@soulapp.cn or menghao@soulapp.cn or wangxinsheng@soulapp.cn

You’re welcome to join our WeChat or Soul APP group for technical discussions, updates.

Quoted from the model card on Hugging Face. The full card is behind the Hugging Face link above.

How it works

How audio & music work

Audio or textinputAudio modelrecognise / synthesiseText or audiooutputSpeech-to-text turns audio into text; text-to-speech and music models turn text into audio.
© 2026 AxForge · EU-hosted AI infrastructure Pricing Docs Trust Privacy Terms