A large language model is an AI system trained on vast text to understand and generate human-like language. LLMs power ChatGPT, Perplexity, and Gemini.
Also known as: LLM
LLMs increasingly sit between your content and your audience, summarizing and citing sources in their answers. Understanding how they retrieve and use content is the basis of optimizing for AI search.
Marketers and site owners whose audiences use AI assistants, and anyone planning content for AI-mediated discovery.
Consider LLM behavior whenever you structure content you want retrieved, quoted, or recommended by AI answer engines.
Our team can put this into practice for your site. Start with a free audit, or explore the geo service.
Generative Engine Optimization (GEO) structures content so AI answer engines like ChatGPT, Perplexity, and AI Overviews can retrieve and cite it.
AI Search OptimizationAI Search Optimization tunes content and site signals so AI search features and assistants can find, summarize, quote, and recommend your brand.
Google AI OverviewsGoogle AI Overviews are AI-generated summaries shown at the top of many search results that answer a query directly and link to a small set of sources the answer draws from.
Last updated: 2026-08-04