Training Data

Training data is the massive collection of text, documents, and other content used to train large language models. The quality, recency, and content of training data directly influences what AI systems know about brands and how they respond to related queries. Training data typically comes from web pages, books, articles, and other text sources. For GEO, understanding training data helps explain AI behavior—if your brand isn't well-represented in authoritative sources that likely appear in training data, AI systems may not mention you.