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Beta-Pre-Train-Corpus / README.md
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metadata
dataset_info:
  - config_name: beta-code-short
    features:
      - name: text
        dtype: string
    splits:
      - name: train
        num_bytes: 10794138003
        num_examples: 4509039
    download_size: 4715168006
    dataset_size: 10794138003
  - config_name: finemath-4plus
    features:
      - name: text
        dtype: string
    splits:
      - name: train
        num_bytes: 34180166414
        num_examples: 6699493
    download_size: 17466919576
    dataset_size: 34180166414
  - config_name: fineweb-edu-2025-26
    features:
      - name: text
        dtype: string
    splits:
      - name: train
        num_bytes: 75405906179
        num_examples: 14036749
    download_size: 43103204761
    dataset_size: 75405906179
  - config_name: fineweb-edu-s100
    features:
      - name: text
        dtype: string
    splits:
      - name: train
        num_bytes: 243744613270
        num_examples: 51351000
    download_size: 144861918602
    dataset_size: 243744613270
  - config_name: fineweb2-hq-pl
    features:
      - name: text
        dtype: string
    splits:
      - name: train
        num_bytes: 40423230615
        num_examples: 13384885
    download_size: 26214155497
    dataset_size: 40423230615
  - config_name: finewiki-en
    features:
      - name: text
        dtype: string
    splits:
      - name: train
        num_bytes: 40630236307
        num_examples: 6614655
    download_size: 17444990008
    dataset_size: 40630236307
  - config_name: finewiki-en-shuffled
    features:
      - name: text
        dtype: string
    splits:
      - name: train
        num_bytes: 40828717226
        num_examples: 6614655
    download_size: 17593358284
    dataset_size: 40828717226
  - config_name: finewiki-pl
    features:
      - name: text
        dtype: string
    splits:
      - name: train
        num_bytes: 4119058903
        num_examples: 1543918
    download_size: 2152215424
    dataset_size: 4119058903
  - config_name: finewiki-pl-shuffled
    features:
      - name: text
        dtype: string
    splits:
      - name: train
        num_bytes: 4128791146
        num_examples: 1543918
    download_size: 2181259210
    dataset_size: 4128791146
  - config_name: github-jupyter
    features:
      - name: text
        dtype: string
    splits:
      - name: train
        num_bytes: 517677269
        num_examples: 47452
    download_size: 223461303
    dataset_size: 517677269
  - config_name: infiwebmath-4plus
    features:
      - name: text
        dtype: string
    splits:
      - name: train
        num_bytes: 30912949273
        num_examples: 6296212
    download_size: 15684654656
    dataset_size: 30912949273
  - config_name: kaggle
    features:
      - name: text
        dtype: string
    splits:
      - name: train
        num_bytes: 5203585027
        num_examples: 580195
    download_size: 2216817820
    dataset_size: 5203585027
  - config_name: notebooks-all
    features:
      - name: text
        dtype: string
    splits:
      - name: train
        num_bytes: 5719745636
        num_examples: 627647
    download_size: 2447890681
    dataset_size: 5719745636
  - config_name: pp2-algebraic-stack
    features:
      - name: text
        dtype: string
    splits:
      - name: train
        num_bytes: 30524056618
        num_examples: 3373977
    download_size: 10935264622
    dataset_size: 30524056618
  - config_name: pp2-arxiv
    features:
      - name: text
        dtype: string
    splits:
      - name: train
        num_bytes: 70401855623
        num_examples: 3965390
    download_size: 33283572746
    dataset_size: 70401855623
configs:
  - config_name: beta-code-short
    data_files:
      - split: train
        path: beta-code-short/train-*
  - config_name: finemath-4plus
    data_files:
      - split: train
        path: finemath-4plus/train-*
  - config_name: fineweb-edu-2025-26
    data_files:
      - split: train
        path: fineweb-edu-2025-26/train-*
  - config_name: fineweb-edu-s100
    data_files:
      - split: train
        path: fineweb-edu-s100/train-*
  - config_name: fineweb2-hq-pl
    data_files:
      - split: train
        path: fineweb2-hq-pl/train-*
  - config_name: finewiki-en
    data_files:
      - split: train
        path: finewiki-en/train-*
  - config_name: finewiki-en-shuffled
    data_files:
      - split: train
        path: finewiki-en-shuffled/train-*
  - config_name: finewiki-pl
    data_files:
      - split: train
        path: finewiki-pl/train-*
  - config_name: finewiki-pl-shuffled
    data_files:
      - split: train
        path: finewiki-pl-shuffled/train-*
  - config_name: github-jupyter
    data_files:
      - split: train
        path: github-jupyter/train-*
  - config_name: infiwebmath-4plus
    data_files:
      - split: train
        path: infiwebmath-4plus/train-*
  - config_name: kaggle
    data_files:
      - split: train
        path: kaggle/train-*
  - config_name: notebooks-all
    data_files:
      - split: train
        path: notebooks-all/train-*
  - config_name: pp2-algebraic-stack
    data_files:
      - split: train
        path: pp2-algebraic-stack/train-*
  - config_name: pp2-arxiv
    data_files:
      - split: train
        path: pp2-arxiv/train-*

Reactive AI / Beta Pre-Train Corpus

Pre-training corpus for RxT-Beta models, created from public & open datasets. Includes high-quality english and polish web crawl data, mathematic and scientific subsets, and code in different programming languages

Subsets & original datasets

  • FineWeb-Edu
    • fineweb-edu-s100 (51.3M examples) - 50% of 'sample-100BT' subset
    • fineweb-edu-2025-26 (14M examples) - CC-MAIN-2025-26 subset - latest crawl
  • FineWiki
    • finewiki-en (6.6M examples) - english wikipedia subset
    • finewiki-pl (1.5M examples) - polish wikipedia subset
  • FineWeb2-HQ
    • fineweb2-hq-pl (13.3M examples) - high-quality filtered polish web crawl
  • FineMath
    • finemath-4plus (6.7M examples)
    • infiwebmath-4plus (6.3M examples)
  • ProofPile-2
    • pp2-arxiv (4M examples) - arXiv research papers
  • Notebooks: