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DataComp-LM (DCLM) is a comprehensive framework designed for building and training large language models (LLMs) with diverse datasets. It offers a standardized corpus of over 300T unfiltered tokens from CommonCrawl, effective pretraining recipes based on the open_lm framework, and an extensive suite of over 50 evaluations. This repository provides tools and guidelines for processing raw data, tokenizing, shuffling, training models, and evaluating their performance.
DCLM enables researchers to experiment with various dataset construction strategies across different compute scales, from 411M to 7B parameter models. Our baseline experiments show significant improvements in model performance through optimized dataset design.
Already, DCLM has enabled the creation of several high quality datasets that perform well across scales and outperform all open datasets.
Developing datasets for better models that are cheaper to train. Using DataComp-LM, we develop a high-quality dataset, DCLM-BASELINE, which we use to train models with strong compute performance tradeoffs. We compare on both a Core set of tasks (left) and on MMLU 5-shot (right). DCLM-BASELINE (orange) shows favorable performance relative to both close-source models (crosses) and other open-source datasets and models (circles).
