README.md

metadata

license: odc-by
task_categories:
  - text-generation
language:
  - en
configs:
  - config_name: default
    data_files:
      - split: train
        path: data/**/*.jsonl.zst
    features:
      - name: id
        dtype: string
      - name: text
        dtype: string
      - name: metadata
        dtype: string
      - name: source
        dtype: string
      - name: version
        dtype: string
      - name: created
        dtype: string
      - name: added
        dtype: string
      - name: doc
        dtype: string
      - name: attributes
        dtype: string

Dolma 3 Sample: 150B Mix

Dataset Sources

Sample of data for 1Bx5C and 7Bx1B. For the full Dolma 3 pool, see: https://huggingface.co/datasets/allenai/dolma3

Source	Type	Tokens	Documents
Common Crawl	Web pages	121B (76.9%)	84.5M
olmOCR Science PDFs	Academic documents	19.9B (12.6%)	2.25M
Stack-Edu (Rebalanced)	GitHub code	11.1B (7.06%)	14.3M
arXiv	Papers with LaTeX	1.29B (0.82%)	247K
FineMath 3+	Math web pages	4.10B (2.60%)	2.57M
Wikipedia & Wikibooks	Encyclopedic	64.6M (0.04%)	119K
Total		157B (100%)	104M

Licensing Information

Dolma 3 is licensed under the Open Data Commons Attribution License v1.0 (ODC-By). It is intended for research and educational use. For more information, please see our Responsible Use Guidelines.

Citation

@misc{olmo2025olmo3,
title={Olmo 3},
author={Team Olmo and Allyson Ettinger and Amanda Bertsch and Bailey Kuehl and David Graham and David Heineman and Dirk Groeneveld and Faeze Brahman and Finbarr Timbers and Hamish Ivison and Jacob Morrison and Jake Poznanski and Kyle Lo and Luca Soldaini and Matt Jordan and Mayee Chen and Michael Noukhovitch and Nathan Lambert and Pete Walsh and Pradeep Dasigi and Robert Berry and Saumya Malik and Saurabh Shah and Scott Geng and Shane Arora and Shashank Gupta and Taira Anderson and Teng Xiao and Tyler Murray and Tyler Romero and Victoria Graf and Akari Asai and Akshita Bhagia and Alexander Wettig and Alisa Liu and Aman Rangapur and Chloe Anastasiades and Costa Huang and Dustin Schwenk and Harsh Trivedi and Ian Magnusson and Jaron Lochner and Jiacheng Liu and Lester James V. Miranda and Maarten Sap and Malia Morgan and Michael Schmitz and Michal Guerquin and Michael Wilson and Regan Huff and Ronan Le Bras and Rui Xin and Rulin Shao and Sam Skjonsberg and Shannon Zejiang Shen and Shuyue Stella Li and Tucker Wilde and Valentina Pyatkin and Will Merrill and Yapei Chang and Yuling Gu and Zhiyuan Zeng and Ashish Sabharwal and Luke Zettlemoyer and Pang Wei Koh and Ali Farhadi and Noah A. Smith and Hannaneh Hajishirzi},
year={2025},
eprint={2512.13961},
archivePrefix={arXiv},
primaryClass={cs.CL},
url={https://arxiv.org/abs/2512.13961},
}

Find the paper at: https://allenai.org/papers/olmo3