AI search

Search engines powered by LLMs.

Definition

AI search (Perplexity, ChatGPT search, Google AI Overviews, Bing Copilot) returns AI-generated answers with citations instead of just blue links. Optimizing for AI search is increasingly important — see LLM visibility.

Related terms

GEO

Generative engine optimization.

LLM

Large language model.

RAG

Retrieval-augmented generation.

llms.txt

File telling AI crawlers what your site is about.

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