CoolFace
Datasetpublic

allenai/dolma3_mix-150B-1025

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 &… See the full description on the dataset page: https://huggingface.co/datasets/allenai/dolma3_mix-150B-1025.

sourceHugging Faceodc-byupdated 9mo agoView on Hugging Face
10likes8kdownloads
Dataset Card

<img alt="Logo for Dolma Mix" src="dolma-mix.png" width="234px" style="margin-left:'auto' margin-right:'auto' display:'block'">

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

SourceTypeTokensDocuments
Common CrawlWeb pages121B (76.9%)84.5M
olmOCR Science PDFsAcademic documents19.9B (12.6%)2.25M
Stack-Edu (Rebalanced)GitHub code11.1B (7.06%)14.3M
arXivPapers with LaTeX1.29B (0.82%)247K
FineMath 3+Math web pages4.10B (2.60%)2.57M
Wikipedia & WikibooksEncyclopedic64.6M (0.04%)119K
Total157B (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