openbmb/Ultra-FineWeb-L1

10,558 downloads in 30 days203 likesLast modified 20 Aug 2026View on Hugging Face

The declared licence (apache-2.0) is classified as permissive.

Declared licenceapache-2.0, from the tag
Licence filesNo licence file at the top level of the repository
Declared sourcesNone listed in the card metadata
Access gated on Hugging FaceNo

Tasks

text-generation

Citation text from the card

@misc{wang2025ultrafineweb,
  title={{Ultra-FineWeb}: Efficient Data Filtering and Verification for High-Quality LLM Training Data},
  author={Yudong Wang and Zixuan Fu and Jie Cai and Peijun Tang and Hongya Lyu and Yewei Fang and Zhi Zheng and Jie Zhou and Guoyang Zeng and Chaojun Xiao and Xu Han and Zhiyuan Liu},
  year={2025},
  eprint={2505.05427},
  archivePrefix={arXiv},
  primaryClass={cs.CL}
}

@misc{ultra-fineweb-l1,
  title={Ultra-FineWeb-L1},
  author={Junshao Guo and Shuaikang Xue and Xiaofei Yang and Chuyue Zhou and Qiang Yin and Qingyang Yuan and Qiang Ma and Yuzhou Zhang and Jie Zhou and Chaojun Xiao and Yudong Wang and Zhiyuan Liu},
  year={2026},
  url={https://huggingface.co/datasets/openbmb/Ultra-FineWeb-L1},
  publisher={Hugging Face}
}

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The same facts for your agent

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dataset_licence({ "id": "openbmb/Ultra-FineWeb-L1" })
signal: "permissive"
stated_licence: "apache-2.0"
sources: 0

Licence facts reported by the dataset and its declared sources. Not legal advice, and not a grant of permission to use the dataset.