Dataset · Hugging Face

MoreThought/UltraFineWeb-L4

Name: UltraFineWeb-L4
Creator: MoreThought
License: apache-2.0
Keywords: task_categories:text-generation, language:en, license:apache-2.0, size_categories:10M<n<100M, format:parquet, modality:text, library:datasets, library:dask, library:polars, library:mlcroissant, region:us, UltraFineWeb, FineWeb, Fine, Edu

Dataset Description The UltraFineWeb-L3 dataset's highest quality subset heavily filtered and cleaned for the rows with the highest quality/educational scores. It is also stripped of any chinese content of any kind, and the result is UltraFineWeb-L4. Dataset Details Curated by: MoreThought Funded by: MoreThought Shared by: MoreThought License: Apache 2.0 Dataset Sources Repository: OpenBMB/UltraFineWeb-L3 Producers: OpenBMB Uses… See the full description on the dataset page: https://huggingface.co/datasets/MoreThought/UltraFineWeb-L4.

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Author / organization	MoreThought
License (as declared)	apache-2.0
Downloads	629 (as reported by Hugging Face)
Likes	3
Created	17 September 2026
Last updated at source	7 October 2026

UltraFineWebFineWebFineEduTLMOpenPre-trainReasoningSLMLLML1L2L3L4thinkthinkingthoughtthoughtshighqualitysmol

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