

Fastest browser for AI agents to run web automation
AI Browsers · 1 tools
Compare AI browsers with a built-in assistant that summarizes pages, answers questions across your tabs, and runs agentic tasks — from Arc and Dia to Perplexity Comet.
An AI browser is a web browser with a large language model built into the interface itself, not bolted on as an extension. It reads the page you're on, answers questions about it, summarizes tabs, and can act on your behalf — clicking, filling forms, and completing multi-step tasks. Examples range from Arc and its successor Dia to Perplexity's Comet and assistant-first builds on Chromium.
Summarize long articles, compare open tabs, and pull answers without leaving the page.
Let the browser click, fill forms, and finish multi-step jobs like booking or shopping.
Draft replies, extract data, and act on web content while you stay in the tab.
Import bookmarks and passwords to try an AI-native browser without rebuilding your setup.
The browser sends the page's text, your open tabs, or a screenshot to a language model along with your request. The model replies in a sidebar, or in agentic mode plans a sequence of clicks and keystrokes that it performs in a live or background tab. Because most are built on Chromium, they keep your extensions and sync while adding the AI layer on top.