Tried and tested mixes for strong pretraining. Inspired by https://huggingface.co/blog/codelion/optimal-dataset-mixing
AI & ML interests
We release large pre-training datasets to accelerate open LLM development. Part of the Hugging Face Science team (hf.co/science)
Recent Activity
View all activity
Papers
How Can We Synthesize High-Quality Pretraining Data? A Systematic Study of Prompt Design, Generator Model, and Source Data
FineWeb2: One Pipeline to Scale Them All -- Adapting Pre-Training Data Processing to Every Language
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HuggingFaceFW/finepdfs
Viewer β’ Updated β’ 476M β’ 67.7k β’ 955 -
HuggingFaceFW/finepdfs-edu
Viewer β’ Updated β’ 49.5M β’ 14.1k β’ 102 -
HuggingFaceFW/ocr-annotations
Viewer β’ Updated β’ 1.62k β’ 74 β’ 20 -
HuggingFaceFW/finepdfs_lang_classification
Viewer β’ Updated β’ 3.08M β’ 25.6k β’ 5
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FineWeb: decanting the web for the finest text data at scale
π·1.45kExplore and download the FineWeb webβscale text dataset
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HuggingFaceFW/fineweb
Viewer β’ Updated β’ 52.5B β’ 342k β’ 3.67k -
HuggingFaceFW/fineweb-edu
Viewer β’ Updated β’ 3.5B β’ 401k β’ 1.35k -
HuggingFaceFW/fineweb-edu-score-2
Viewer β’ Updated β’ 13.9B β’ 15.8k β’ 90
1.8B models trained on 350BT to compare different pretraining datasets
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HuggingFaceFW/ablation-model-fineweb-edu
Text Generation β’ 2B β’ Updated β’ 715 β’ 24 -
HuggingFaceFW/ablation-model-fineweb-v1
Text Generation β’ 2B β’ Updated β’ 135 β’ 14 -
HuggingFaceFW/ablation-model-refinedweb
Text Generation β’ 2B β’ Updated β’ 37 β’ 3 -
HuggingFaceFW/ablation-model-c4
Text Generation β’ 2B β’ Updated β’ 54 β’ 4
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FineWeb2: One Pipeline to Scale Them All -- Adapting Pre-Training Data Processing to Every Language
Paper β’ 2506.20920 β’ Published β’ 81 -
HuggingFaceFW/fineweb-2
Viewer β’ Updated β’ 4.48B β’ 124k β’ 906 -
Scaling FineWeb to 1000+ languages: Step 1: finding signal in 100s of evaluation tasks
π96Evaluate multilingual models using FineTasks
FineWeb-Edu datasets, classifier and ablation model
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HuggingFaceFW/fineweb-edu
Viewer β’ Updated β’ 3.5B β’ 401k β’ 1.35k -
HuggingFaceFW/fineweb-edu-score-2
Viewer β’ Updated β’ 13.9B β’ 15.8k β’ 90 -
HuggingFaceFW/fineweb-edu-classifier
Text Classification β’ 0.1B β’ Updated β’ 33.1k β’ β’ 228 -
HuggingFaceFW/ablation-model-fineweb-edu
Text Generation β’ 2B β’ Updated β’ 715 β’ 24
Ablation models trained for our data experiments.
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HuggingFaceFW/ablation-exp-textext-warc_trafilatura-28BT
Text Generation β’ 2B β’ Updated β’ 17 β’ 1 -
HuggingFaceFW/ablation-exp-textext-wet-28BT
Text Generation β’ 2B β’ Updated β’ 11 -
HuggingFaceFW/ablation-exp-fw-base_filtering-350BT
Text Generation β’ 2B β’ Updated β’ 12 -
HuggingFaceFW/ablation-exp-dedup-global_minhash-350BT
Text Generation β’ 2B β’ Updated β’ 17
Tried and tested mixes for strong pretraining. Inspired by https://huggingface.co/blog/codelion/optimal-dataset-mixing
-
HuggingFaceFW/finepdfs
Viewer β’ Updated β’ 476M β’ 67.7k β’ 955 -
HuggingFaceFW/finepdfs-edu
Viewer β’ Updated β’ 49.5M β’ 14.1k β’ 102 -
HuggingFaceFW/ocr-annotations
Viewer β’ Updated β’ 1.62k β’ 74 β’ 20 -
HuggingFaceFW/finepdfs_lang_classification
Viewer β’ Updated β’ 3.08M β’ 25.6k β’ 5
-
FineWeb2: One Pipeline to Scale Them All -- Adapting Pre-Training Data Processing to Every Language
Paper β’ 2506.20920 β’ Published β’ 81 -
HuggingFaceFW/fineweb-2
Viewer β’ Updated β’ 4.48B β’ 124k β’ 906 -
Scaling FineWeb to 1000+ languages: Step 1: finding signal in 100s of evaluation tasks
π96Evaluate multilingual models using FineTasks
-
FineWeb: decanting the web for the finest text data at scale
π·1.45kExplore and download the FineWeb webβscale text dataset
-
HuggingFaceFW/fineweb
Viewer β’ Updated β’ 52.5B β’ 342k β’ 3.67k -
HuggingFaceFW/fineweb-edu
Viewer β’ Updated β’ 3.5B β’ 401k β’ 1.35k -
HuggingFaceFW/fineweb-edu-score-2
Viewer β’ Updated β’ 13.9B β’ 15.8k β’ 90
FineWeb-Edu datasets, classifier and ablation model
-
HuggingFaceFW/fineweb-edu
Viewer β’ Updated β’ 3.5B β’ 401k β’ 1.35k -
HuggingFaceFW/fineweb-edu-score-2
Viewer β’ Updated β’ 13.9B β’ 15.8k β’ 90 -
HuggingFaceFW/fineweb-edu-classifier
Text Classification β’ 0.1B β’ Updated β’ 33.1k β’ β’ 228 -
HuggingFaceFW/ablation-model-fineweb-edu
Text Generation β’ 2B β’ Updated β’ 715 β’ 24
1.8B models trained on 350BT to compare different pretraining datasets
-
HuggingFaceFW/ablation-model-fineweb-edu
Text Generation β’ 2B β’ Updated β’ 715 β’ 24 -
HuggingFaceFW/ablation-model-fineweb-v1
Text Generation β’ 2B β’ Updated β’ 135 β’ 14 -
HuggingFaceFW/ablation-model-refinedweb
Text Generation β’ 2B β’ Updated β’ 37 β’ 3 -
HuggingFaceFW/ablation-model-c4
Text Generation β’ 2B β’ Updated β’ 54 β’ 4
Ablation models trained for our data experiments.
-
HuggingFaceFW/ablation-exp-textext-warc_trafilatura-28BT
Text Generation β’ 2B β’ Updated β’ 17 β’ 1 -
HuggingFaceFW/ablation-exp-textext-wet-28BT
Text Generation β’ 2B β’ Updated β’ 11 -
HuggingFaceFW/ablation-exp-fw-base_filtering-350BT
Text Generation β’ 2B β’ Updated β’ 12 -
HuggingFaceFW/ablation-exp-dedup-global_minhash-350BT
Text Generation β’ 2B β’ Updated β’ 17