AI Glossary
Corpus
What is Corpus?
A large, structured collection of text used to train or evaluate a language model. Pre-training corpora for frontier models include hundreds of billions to trillions of tokens drawn from the web, books, academic papers, and code repositories. The composition and quality of a training corpus heavily influence model capability and bias.
Example in practice
A legal AI company that builds a training corpus from 30 years of published case law, statutes, and legal commentary is creating domain-specific training data designed to specialise a model's language towards precise legal reasoning.
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