Perplexity Comet Browser Review (2026): Worth Switching From Chrome?
A full Perplexity Comet review: what the AI browser actually does day to day, the CometJacking and prompt-injection security concerns, pricing tiers, and who should (and shouldn't) switch.
Quick verdict
Comet is the most capable free AI browser available in 2026, and the first one that actually feels like a browser you’d use daily rather than a chatbot with a tab bar bolted on. It’s a genuinely strong pick if your browsing is research-heavy. It’s a poor pick if you plan to grant its agentic features access to anything sensitive — the security track record so far doesn’t support that level of trust yet.
What Comet actually is
Comet, from Perplexity, launched April 6, 2026 as a Chromium-based browser with an AI assistant built into the browser chrome itself, not an extension. It keeps the things you’d expect from a normal browser — bookmarks, tab management, Chrome extension compatibility, built-in ad blocking, import from your old browser — and adds the Comet Assistant: a sidebar AI that can read the page you’re on, answer questions about it, summarize across multiple open tabs, and in some cases take multi-step actions on your behalf. Perplexity Search is the default search engine, replacing the traditional list of blue links with a synthesized, cited answer.
What it’s good at
Research is where Comet earns its reputation. Ask it to compare three product pages you have open and it references what’s actually on your screen rather than making you re-paste content into a chat window. The cross-tab context is the feature that’s hardest to replicate by bolting an AI extension onto Chrome, because it requires the assistant to actually live inside the browser rather than operate on whatever you happen to copy into it.
Day to day, that translates into: faster fact-checking while reading (ask a question about the page without leaving it), genuinely useful multi-tab summarization when you have a pile of open research tabs, and voice commands for hands-free queries. It’s fast enough that it doesn’t feel like a tax on ordinary browsing, which is where a lot of earlier AI-browser attempts fell short.
Where it struggles
The interface is generic next to Chrome, Arc, or Edge — functional, not distinctive. Cross-tab awareness gets confused once you have a lot of tabs open, which undercuts the exact feature Comet is built around. And the biggest one: security.
CometJacking, disclosed in August 2025, is a one-click URL attack that could be used to encode and exfiltrate Gmail and Calendar data through the assistant. Perplexity classified it as having no security impact; the researchers who found it disputed that assessment. In March 2026, The Hacker News reported that Comet was tricked into completing a phishing scam in under four minutes through indirect prompt injection — a malicious webpage embedding hidden instructions that the assistant read as if they’d come from the user. Neither of these is a one-off: prompt injection remains an unsolved, industry-wide problem across every AI browser as of 2026, not a Comet-specific bug that got patched and closed.
There’s also a data-handling trade-off worth being clear-eyed about: every AI query routes through Perplexity’s servers (there’s no local-processing option yet), and Comet can optionally learn from your browsing history to personalize future interactions — which is useful, and also means it’s building a detailed profile of your browsing over time if you leave that on.
Pricing
Comet itself is free for any Perplexity account holder, with no regional restriction. Beyond the free tier: Comet Plus ($5/month) unlocks premium content access from partnered publishers; Perplexity Pro ($20/month) adds Model Council and premium model access with unlimited queries; Perplexity Max ($200/month) adds faster responses, priority support, and early access to new features. None of these are required to use Comet’s core browsing and assistant features — they layer on top.
Who should use it
Anyone whose browsing leans heavily toward research, comparison shopping, or synthesizing information across multiple sources will get real, daily value out of Comet. If you’re already a Perplexity user, the browser is a natural extension of a workflow you’re in already.
Who shouldn’t
Don’t grant Comet’s agentic features access to email send/delete, banking, or stored payment methods until the security track record improves — that’s not overcaution, it’s a direct response to two disclosed incidents within the same year. Enterprise users handling confidential information should hold off entirely; several security researchers have said as much explicitly. And if your browsing is mostly straightforward (not research-heavy), the upside over a normal browser is smaller than the marketing suggests.
Comet vs. the other AI browsers
Comet’s closest competitors are ChatGPT Atlas and Dia, and the honest differentiator is what each optimizes for: Comet for research, Atlas for automation (if you’re already paying for ChatGPT), Dia for repeatable saved workflows. See our full Atlas vs Comet vs Dia comparison for the head-to-head breakdown if you’re choosing between all three rather than deciding on Comet specifically.
FAQ
Is Perplexity Comet actually free?
Yes, the browser and its core AI assistant are free with no paywall, on Mac, Windows, iOS, and Android. Comet Plus, Pro, and Max are optional paid tiers that add extra features rather than gating basic use.
Is Comet safe to use for sensitive tasks?
Not yet, for anything genuinely sensitive. Disclosed vulnerabilities (CometJacking) and a documented prompt-injection phishing incident in 2026 mean the agentic features shouldn’t be trusted with banking, email actions, or stored payment data until the security posture improves industry-wide, not just for Comet specifically.
Does Comet replace Chrome extensions?
Comet supports Chrome extension compatibility, so most of your existing extensions should carry over rather than needing Comet-specific replacements.
How is Comet different from just using Perplexity in a regular browser?
The cross-tab context and page-aware assistant only work because Comet is a full browser rather than a website or extension — it can see and reference what’s actually open across your tabs in a way a chat window you paste into can’t.
