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The Madison Avenue Field GuideA field guide to marketing & advertising, by Brandon Mina

GlossaryAI Search & EmergingAgentic Browser

AI Search & Emerging

Agentic Browser

A web browser with a built-in AI agent, such as Perplexity Comet or ChatGPT Atlas, that can read pages, fill forms, and complete tasks for the user.

By Brandon MinaCEO, BrandPilot AIUpdated November 2026

Short answer

An agentic browser is a web browser with a built-in AI agent that can read pages, navigate sites, fill out forms, and complete tasks for the user. Examples include Perplexity Comet and OpenAI's ChatGPT Atlas. For marketers, agentic browsers change how people discover and buy, making sites that agents can easily parse more important.