{"_id":"696789567b115954f1c68ab0","id":"openbmb/UltraData-Math","author":"openbmb","sha":"fe10db8efd35597fd7fcff8ff576b5ec4ea5ff87","lastModified":"2026-04-15T12:28:05.000Z","private":false,"gated":false,"disabled":false,"tags":["task_categories:text-generation","language:en","language:zh","license:apache-2.0","size_categories:100M<n<1B","format:parquet","modality:text","library:datasets","library:dask","library:polars","library:mlcroissant","arxiv:2602.09003","region:us","llm","pretraining","math","data-synthesis","data-filtering","high-quality","mathematical-reasoning"],"description":"\n\t\n\t\t\n\t\n\t\n\t\tUltraData-Math\n\t\n\n\n  \n\n\n\n🤗 Dataset | 💻 Source Code | 🇨🇳 中文 README\n\n\nUltraData-Math is a large-scale, high-quality mathematical pre-training dataset totaling 290B+ tokens across three progressive tiers—L1 (170.5B tokens web corpus), L2 (33.7B tokens quality-selected), and L3 (88B tokens multi-format refined)—designed to systematically enhance mathematical reasoning in LLMs. It has been applied to the mathematical pre-training of the MiniCPM Series models.\nIt was introduced in… See the full description on the dataset page: 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