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GEO Toolbox

How AI Search Works

Large Language Model (LLM)

Also: LLM, large language models

A large language model (LLM) is an AI model trained on vast amounts of text to understand and generate language. LLMs like GPT, Gemini, and Claude power AI search engines, producing answers from patterns learned in training plus sources retrieved at query time.

Updated

An LLM holds two kinds of knowledge. Its parametric memory is what it absorbed during training, which updates slowly. At query time, an AI search product also retrieves live sources and grounds the answer in them, which is how current facts and citations get in.

That split matters for visibility. Editing your pages will not rewrite a model's training, but it can change what gets retrieved and cited today. Clear, consistent, reachable content is what an LLM can lift into an answer.