The old web makes you dig. Comet is built to skip the digging.
Think about your last hour online. How many tabs did you open? How many times did you jump between a search engine, a summary tool, a note-taking app, and your email? Most of the time, you're not browsing at the speed of thought—you're digging through a pile of information, one tab at a time.
Comet, built by Perplexity AI, is trying to close that gap. It's not a browser with a chatbot bolted onto the side; the AI sits at the center of how the browser works, not off to one side of it.
What Comet actually changes
The core idea is to cut the number of steps between a question and an answer. In a normal browser, answering a research question usually means: open a new tab, type a query, click through several links, read and synthesize, then copy-paste the answer into wherever you actually needed it.
Comet collapses that into one interaction. Instead of just returning links, its Agent Mode reads pages, tabs, and open documents, and gives you a synthesized answer directly.
| The old way | The Comet way |
|---|---|
| Tab overload—50+ tabs open, each a half-finished thought | Workspaces—contextual, organized projects that save your place |
| Endless searching—clicking through pages of links for one answer | Agentic search—a single answer synthesized from the best sources |
| Context switching between browser, email, and note apps | An integrated AI agent that can draft emails, summarize documents, and plan tasks inside the browser |
How its Agent Mode uses context
Comet's Agent Mode is free and built into the browser rather than gated behind a separate subscription. Its most useful trait is contextual awareness: it doesn't just read the page you're on, it can reference your open tabs and Workspaces as a working set of source material.
For example, if you have a long research paper open in one tab and ask, “What is the author's main conclusion about the long-term effects of the policy?”, Comet will scan the open document, identify the relevant section, extract the core point, and present it in the sidebar—often linking back to the exact spot in the source tab.
That's meaningfully different from a generic summary. It's contextual quoting: pulling a specific answer from a document you already have open, instead of sending you off to search again.
Where the automation actually saves time
The more interesting use cases are multi-step tasks that combine reading, summarizing, and acting from one command, while you keep working in your main tab.
Email triage
A long client email with several questions and a meeting request normally means: read it, check your calendar, draft a response addressing each point, proofread. With Comet's sidebar, you can ask it to draft a reply that checks your calendar and addresses each question, then review and send—cutting a several-step task down to one review pass.
Personal search and information retrieval
- Natural-language history search: find a previously viewed article by describing it (“find that article about the new AI browser I read last week”) instead of remembering exact keywords.
- Cross-tab context: the agent can reference and compare information across multiple open tabs, synthesizing one answer from several sources at once.
- Email and calendar analysis: with permission, Comet can search Gmail to find open meeting times, pull relevant documents for an agenda, or flag unanswered emails.
- Multi-tab summarization: ask it to summarize everything open at once for a quick briefing on a research project.
Tab and browser management
- Natural-language tab commands: “close all tabs related to the Q3 project,” or “group all news articles into one tab group.”
- @tab selection: reference a specific open tab directly in a query so the agent knows exactly which document to act on.
- Duplicate tab cleanup: automatically finds and closes duplicate or inactive tabs.
- Tab memory: restores your open tabs and work context after a restart.
Advanced workflows
- Comet Shortcuts: custom commands for recurring multi-step tasks—for example, a single shortcut that opens several dashboards, summarizes the data, and drafts a status message.
- Multi-step automation across platforms: gathering data from a form, populating a spreadsheet, and drafting a follow-up email in one pass.
Workspaces: the end of tab-bar chaos
If your browser window has a hundred tabs fighting for attention, that's a real cost to focus, not just clutter. Comet's Workspaces replace the flat tab bar with dedicated, contextual environments for a single project or area—a “Q4 Strategy” workspace, a “Personal Finance” workspace, a newsletter-content workspace, each holding its own tabs, documents, and dashboards. Close one and its tabs disappear from view but stay preserved for when you return.
Workspaces also feed the AI agent context. Ask a question inside your “Q4 Strategy” workspace, and the agent prioritizes the tabs and documents in that workspace rather than treating your whole browsing history as equally relevant.
Worth knowing before you switch
Agent Mode being free right now doesn't guarantee it stays that way indefinitely—it's worth checking Perplexity's current pricing before building a workflow that depends entirely on it. And any tool that reads your email, calendar, and open tabs to act on your behalf is worth a look at its permissions and data-handling practices before you grant broad access.
With that said, the actual shift Comet represents is real: fewer manual tab-juggling steps, and an AI agent that acts on the context you already have open instead of starting from a blank search every time.