Perplexity Comet — the AI browser

For twenty years your browser was a passive window onto the web. Perplexity Comet, released in 2025, is the first widely-used browser that treats AI as part of the browser itself — not a sidebar, not an extension, but integrated into the tab bar and address bar.

• Ask questions of the current page or selection without leaving the tab.
• An AI agent that can complete tasks across multiple tabs (compare prices, fill forms, summarize a research session).
• Memory across sessions — Comet remembers what you've been working on and picks up the thread.
• Chromium-based so every website still works.

Research workflows are where Comet actually earns its keep. Open 20 tabs on a topic, ask Comet to synthesize them into a brief with cited sources, and it does. For high-schoolers doing term papers, this changes the shape of the research process — but it also changes what 'research' means, which raises the question of what you actually learned.

Comet is a browser agent — meaning it can perform multi-step tasks across web interfaces. Book a flight. Re-up a prescription. File an expense report. This puts Comet in direct competition with OpenAI's Operator and Anthropic's Computer Use, but with a critical advantage: it runs locally in your browser session so it already has your logins.

Install Comet (it's free to try; full features need Perplexity Pro). Open three tabs about a current news story. Ask Comet: 'synthesize these three perspectives and cite which claim came from which source.' You'll get a reasonable first draft — and you'll see its limits.