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OSCAR LogoThe OSCAR project (Open Super-large Crawled Aggregated coRpus) is an Open Source project aiming to provide web-based multilingual resources and datasets for Machine Learning (ML) and Artificial Intelligence (AI) applications. The project focuses specifically in providing large quantities of unannotated raw data that is commonly used in the pre-training of large deep learning models. The OSCAR project has developed high-performance data pipelines specifically conceived to classify and filter large amounts of web data. The project has also put special attention in improving the data quality of web-based corpora as well as providing data for low-resource languages, so that these new ML/AI technologies are accessible to as many communities as possible.

Getting access Latest version Quickstart guide


The new ✨ OSCAR 2301 ✨ is available! 🥳

This website aims to gather information about the corpus in a technical point of view:

  • Corpus versions and their respective file formats.
  • Tools and pipelines, how to install and use them.
  • More general documentation and how to contribute.