Agentic Search
In one line
Agentic search is the paradigm where an AI agent runs multiple searches and tool calls on the user's behalf, then synthesises a single answer.
Going deeper
Agentic search is the move from a user typing five queries and comparing results to an agent doing all of that on their behalf. ChatGPT's deep research, Perplexity's reasoning mode and Google's Gemini Deep Research all fit this pattern — one prompt fans out into dozens of internal searches.
It matters for GEO because the unit changes. The question is no longer 'how often am I cited per search' but 'how often do I show up across the dozens of internal searches behind a single user prompt'. That naturally favours authoritative sources and consistent data.
In agentic search, pages that deliver a clean one-sentence definition tend to win citations. Agents also cross-check the same fact across sites, so making sure your facts line up across channels is creeping closer to a real KPI.
Related terms
GEO
GEO (Generative Engine Optimization) is the practice of optimizing content and data so that a brand gets cited and recommended inside generative AI search answers like ChatGPT, Perplexity and Google AI Overviews.
GEO·AEOPerplexity
Perplexity is an answer engine that turns search results into a single cited answer, attaching a numbered source to every sentence — making it a common reference surface for measuring GEO performance.
GEO·AEOChatGPT Search
ChatGPT Search is the feature that lets ChatGPT combine its trained knowledge with live web results, citing sources alongside the answer.
GEO·AEOAI Overview
Google AI Overviews is the AI-generated summary that appears above the standard results in Google Search — one of the most prominent zero-click surfaces today.
AI AgentAI Agent
An AI agent is an LLM-driven system that takes a goal, plans the steps, calls the tools it needs and runs the task end-to-end with limited human input.
How does your brand show up in AI answers?
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