openbmb/Ultra-FineWeb

Permissive or share-alike

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

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

Evidence

• Declared licence: apache-2.0 (from the tag)
• Licence files: LICENSE, detected as apache-2.0
• Access gated on Hugging Face: no

Declared sources

No source datasets listed in the card metadata.

Signal

See all datasets marked Permissive or share-alike.

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},
}

Downloads (30 days): 69167. Likes: 464. Last modified: 2026-08-20T06:11:45.000Z.

View openbmb/Ultra-FineWeb on Hugging Face | JSON