Comet Review 2026: Pricing, Features and Verdict

What it is

Comet is a web browser with Perplexity built into it. Perplexity launched it in limited release on July 9, 2025, opened it to everyone for free on October 2, 2025, and has since added iOS and Android apps. It is Chromium based, so pages render like Chrome and most Chrome Web Store extensions install normally.

Three things make it more than Chrome with a chatbot bolted on:

• Perplexity search is the default. The address bar returns cited answers instead of a list of links. You can switch the default engine, but Perplexity's help center notes you lose the AI address bar features if you do.
• Comet Assistant sits beside every tab. It reads the page you are on, or any tab you mention with @, and it can click, type and fill in forms for you.
• It remembers through your Perplexity account. Comet uses Perplexity's memory system, which you can view and delete in settings.

You do not need a Perplexity account to start. Signing in adds saved chats, history, sync across devices and what the help center calls "more powerful AI features and higher limits."

Pricing explained

The browser costs nothing. What you pay for is how much AI you use and which models run it.

Plan	Price	What it adds to Comet
Comet	$0	Browser, Comet Assistant, ad block, voice mode
Comet Plus	$5 per month	Premium content from participating publishers
Perplexity Pro	$17 per month billed annually	Comet Plus included, higher limits, model selection, Deep Research, 4,000 bonus Computer credits
Perplexity Max	$167 per month billed annually	Advanced models powering Comet Assistant, 10,000 monthly credits plus 35,000 bonus credits
Comet for Enterprise	With Perplexity Enterprise plans	Managed rollout, 500+ Chromium policies, Assistant permission controls

Two details matter. First, Perplexity's pricing table shows the "advanced models powering Comet Assistant" row with dashes for Free and Pro and only fills it in for Max. Free and Pro users still get the Assistant, just not the top tier of models behind it. Second, the pricing page shows annual prices only. If you want month to month billing, you will see the price at checkout, not on the public page.

For most people the math is simple: the free browser is enough to judge whether you like an assistant in your sidebar. Pro at $17 a month makes sense if you already use Perplexity for research. Max at $167 is a power user plan, and the Comet upgrade alone does not justify it. Our Comet pricing guide runs the numbers in more detail.

Key features

Comet Assistant panel

The Assistant opens in a side panel and works while you keep browsing. Perplexity's examples are practical: summarize this page, list the next steps described here, draft an email reply from this tab, translate a section, pull out dates and locations. The help center says you can run as many errands in parallel as you want, and each new tab has its own Assistant ready.

Actions on websites

This is the agent part. You can ask Comet to book a meeting, send an email based on something you saw, buy something or brief you on your day. The Assistant navigates and clicks in your real browser, with your logged in sessions. That is what makes it useful, and also what makes it risky, which we cover under privacy and security.

Personal search and connectors

Comet Assistant can search your own browsing history to find a page you saw last week, and a Gmail connector lets it answer questions about your email and calendar. Comet asks for approval before it connects to services like Gmail.

Voice mode and shortcuts

Voice mode lets you ask about anything on screen, tell Comet to go to a page, or continue a conversation across tabs. Shortcuts save a prompt you use often as a reusable command.

Standard browser features

Built in ad and tracker blocking uses open source filter lists. You also get split view, profiles, a built in password manager that stores credentials locally with encryption, safe browsing, safe downloads, sync between devices and import from your old browser.

Comet for Enterprise

Organizations on Perplexity Enterprise can deploy Comet through Intune, Group Policy or MDM on Windows and at scale on macOS, apply more than 500 Chromium policies, and restrict what Comet Assistant can do. Perplexity also documents that Comet for Enterprise collects telemetry about usage and performance.

What users say

Comet's iOS app holds 4.8 on the App Store from 7,807 ratings as of October 2026. Perplexity's main app, which shares the same account and search engine, holds 4.8 from 516,443 ratings.

The recurring praise in public discussion is that it is free, that the Assistant saves copy and paste between tabs, and that it behaves like Chrome because it is Chromium. The recurring complaints are privacy worries about a browser from an AI company seeing everything you do, and security concerns after the 2025 prompt injection disclosures. We did not find a Comet specific G2 or Trustpilot listing with enough reviews to cite.

Privacy and security

What stays local. Perplexity's Comet privacy article says that by default the Assistant does not access or upload your browsing history, the full list of open tabs, cookies or site data, passwords and autofill data, local files, or text you type on websites unless you put it in a request. Those stay inside Comet and your operating system.

What gets sent. Data goes to Perplexity only when a request needs it, for example summarizing the current tab, pulling information from selected text or completing a task that needs email or calendar access.

Your controls. In Settings, then Privacy and security, you can stop the Assistant from using your history, browsing the web or interacting with sites, and you can block it from specific websites. Perplexity's own example is blocking your bank. Incognito mode stops the Assistant from indexing your browsing.

The prompt injection record. This is the part buyers should read twice. Brave's security team reported on July 25, 2025 that Comet fed page content to its model without separating it from the user's instructions. Their proof of concept hid instructions in a Reddit comment; when the user clicked "Summarize the current webpage," Comet went to the user's Perplexity account page, read their email address, triggered a login code, read that code in Gmail and posted both back to Reddit. Brave published on August 20, 2025 and added that Perplexity still had not fully mitigated the attack. A second Brave post on October 21, 2025 showed instructions hidden in faint text inside screenshots could also steer Comet's assistant.

In December 2025, Gartner analysts published an advisory titled "Cybersecurity Must Block AI Browsers for Now," naming Comet and ChatGPT Atlas, according to The Register. Their concerns were data sent to the AI back end from sidebars and "indirect prompt-injection-induced rogue agent actions."

None of this means Comet is uniquely careless; Brave found similar issues in other AI browsers. It does mean you should treat agent actions on logged in sites as a privilege. Use the site block list for banking, health and work email, and watch the Assistant when it acts.

Who it is for

• People who want an AI browser without paying. Comet is free on four platforms.
• Perplexity Pro and Max subscribers. You already pay for the search engine; Comet makes it your browser.
• Researchers and students. Cited answers in the address bar plus tab aware summaries cut a lot of copy and paste.
• Chrome users who want to switch with little friction. Extensions, bookmarks and passwords come with you.

Who should skip it

• Anyone on Linux. It is not officially supported.
• Companies with low risk tolerance. Gartner's advice was to block AI browsers for now; Dia publishes stronger controls and a SOC 2 Type II report.
• People who want a cautious agent by design. Comet's Assistant can go wherever you send it. Dia deliberately stops its agent from navigating to other sites.
• Google Workspace heavy users happy in Chrome. Gemini in Chrome gives you most of this without changing browsers.

Alternatives

• Gemini in Chrome: stay in Chrome; auto browse needs Google AI Pro at $19.99 per month.
• Dia: the security first pick, with published prompt injection controls.
• Opera Neon: model choice and MCP for $19.90 per month.
• ChatGPT agent: OpenAI's agent, now ChatGPT Work, for finished documents rather than browsing.

See all Comet alternatives, or compare Comet vs Dia and Atlas vs Comet.

Verdict

Comet is the AI browser to try first. It costs nothing, runs nearly everywhere, keeps your browsing data local by default and does real work in your tabs. Perplexity's annual only price display and the Max only label on top Assistant models are minor irritations. The prompt injection record is not minor: until the whole category solves it, use Comet's site block list and keep the Assistant away from your money and your inbox.