Quick Takeaway
Comet is a free web browser built on Chromium with an integrated AI assistant in the sidebar.
Unlike Chrome or Firefox, Comet lets you highlight any text on a webpage and get instant answers from the AI without opening another tab.
New users can claim 1 month free Perplexity Pro. Students with .edu email get 1 year free. The browser is completely free to download and use.
What it is: A web browser with a built-in AI sidecar assistant
Platforms: Windows, Mac, and Android. iOS expected 2026.
Who it’s for: Researchers, students, shoppers, professionals who fact-check while reading
Limited-time offer: 1 month free Perplexity Pro (1 year free for students with .edu email)
Time to try: 5 minutes to download; 1 week to evaluate
How does Comet compare to ChatGPT’s Atlas browser? See Atlas vs. Comet comparison.
What Comet Does
Comet is a web browser—think Chrome or Firefox—but built on Chromium with one key difference: It has an AI assistant built directly into the sidebar.
According to Perplexity’s official announcement, Comet is designed to let you “browse at the speed of thought,” with AI answering questions directly in the sidebar without interrupting your workflow.
Instead of switching to ChatGPT in another tab, you can:
- Highlight text on any webpage
- Ask the AI to explain, summarize, or fact-check it
- Get an answer in the sidebar without leaving the page
Is Comet For You?
Comet works best if you:
- Research products before buying (comparing prices, reading reviews)
- Fact-check claims while reading news or articles
- Study with multiple sources and need to synthesize information
- Get tired of context-switching between tabs
- Want to verify technical terms or statistics while reading
If you just browse casually without fact-checking or research, Chrome works fine and doesn’t require a learning curve.
Comet uses Perplexity’s AI models for searching and reasoning. For a broader overview of Perplexity itself, check out our Perplexity for beginners guide.
Example workflow: You’re reading a product review. You highlight a price claim. You ask Comet’s AI to check if that’s accurate across other retailers. Results appear in the sidebar in 3-5 seconds. You stay on the original page the entire time.
See a practical shopping example: Using Comet assistant for price checking.
Why I Use Comet Instead of Chrome
I spend a lot of time reading online—product reviews, news articles, research papers, forum posts. And I frequently need to verify what I’m reading.
Last week I was reading a laptop review that claimed 14-hour battery life. I highlighted the claim, asked Comet’s sidebar to check other reviews, and got answers from 6 sources in 8 seconds. Without Comet, I would have opened a new tab, searched Google, clicked through multiple reviews, and lost my place in the original article.
With Chrome, fact-checking while reading requires:
- Highlight the text
- Copy it
- Open ChatGPT in a new tab
- Paste and wait for response
- Switch back to original page
That’s 5 steps and context-switching across tabs. I do this 30-40 times per day.
With Comet, it’s:
- Highlight text
- Ask the sidebar assistant
- Get answer without leaving the page
That’s 3 steps and zero context-switching. After using Comet for 3 months, I estimate it saves me about 45 minutes per day. If you’re looking to replace Google with Perplexity for daily research, Comet is the fastest way to do it.
Students get special benefits with Comet and Perplexity — learn about free Pro for students.
What Comet Can Do
Sidecar AI Assistant
Ask questions about any webpage. The AI reads the page content and answers directly in a sidebar panel. This works similarly to Perplexity’s Pro Search feature but integrated into your browser.
Agentic Automation (Beta)
The AI can automatically fill forms, add items to shopping carts, and manage tasks across websites. Still in beta, so reliability varies.
Study Mode
Designed for students. Helps organize research, highlight key concepts, and manage study materials across multiple tabs. This integrates with Perplexity Collections and Spaces for organizing your research across the web and in Perplexity itself.
Shopping Assistant
Compare prices across retailers without opening new tabs. See price history and current availability in the sidebar. I use this about 3 times per week and appreciate not having to open 5 different store tabs.
Multi-Tab Intelligence
Ask questions about information across multiple open tabs. The assistant synthesizes answers from all visible pages.
Built-in Tools
Travel (flight/hotel comparison), Finance (market data), Sports (scores and stats), and Spaces (project organization).
Mobile Features (Android)
Comet launched on Android on November 20, 2025. According to PC Mag, Perplexity redesigned the experience specifically for mobile rather than just adapting the desktop version.
Voice Mode: Talk to your Comet Assistant about open tabs using voice commands. Hands-free browsing assistance.
Multi-tab summarization: The assistant can pull information from all your open tabs at once and synthesize answers.
Shopping assistant: Price comparison and product research on the go, same as desktop.
Expanded reasoning display: See what actions the assistant is taking and step in if needed.
Coming to Android: Password manager (currently uses Android’s native manager), cross-device syncing for bookmarks and history, and quick action shortcuts.
iOS is expected in 2026. Check Perplexity’s official website for the latest launch date.
Comet vs Chrome: Quick Comparison
| Feature | Comet | Chrome | Winner |
|---|---|---|---|
| Price | Free | Free | Tie |
| Built-in AI Assistant | Yes (integrated sidebar) | No (need separate tab) | Comet |
| Extension Ecosystem | Limited (growing) | 1M+ extensions | Chrome |
| Learning Curve | Moderate (1-2 weeks) | None | Chrome |
| Performance on text sites | Excellent | Excellent | Tie |
| Performance on media-heavy sites | Good (2-3 sec slower) | Excellent | Chrome |
| Privacy | Excellent (no data selling) | Fair (Google tracking) | Comet |
| Best For | Research, fact-checking, shopping | General browsing, email | Use both |
| Website Compatibility | ~95% of websites | ~100% of websites | Chrome |
| Platforms | Windows, Mac, Android | All platforms | Chrome |
Most people keep both installed. Use Comet for research tasks, Chrome for everyday browsing and websites with compatibility issues. Want to see how Perplexity compares to ChatGPT for research? Check our Perplexity vs. ChatGPT comparison.
How to Get Started in 5 Minutes
Download and Install
Desktop: Download Comet Browser (Get 1 Month Free Perplexity Pro)
Android: Get Comet on Google Play (requires Android 12 or later)
iOS: Expected 2026 (not yet released)
Students with .edu email: Download Comet (Get 1 Year Free Perplexity Pro)
For desktop, choose the installer for your operating system (Windows, Mac, or Linux). Installation is automatic—open the installer and follow the prompts. Takes about 2 minutes.
Claim Your Free Month (or Year)
Once installed, Comet will prompt you to log in or create an account. This is the same account you’d use for Perplexity on the web, so if you already have an account, you’re set. Your free Perplexity Pro access activates automatically when you ask your first question in Comet.
Duration of free access:
- General users: 1 month free Perplexity Pro
- Students (with .edu email): 1 year free Perplexity Pro
Note: The PayPal/Venmo promotion that offered 1 year free Pro access expired on December 31, 2025 and is no longer available.
Verify Pro Activation
Visit perplexity.ai and look for the ‘PRO’ badge in the lower left sidebar under the Account section to confirm your activation.
Set as Default Browser (Optional)
To set Comet as your default browser on Mac, click the “Comet” option in the upper left corner of your screen, then select “Set as Default Browser” from the drop-down menu.
This is the quickest and most reliable way—no need to navigate system settings.
(For Windows, use the Settings > Apps > Default Apps menu instead.)
(For Android, go to Settings > Apps > Default apps > Browser app and select Comet.)
You can always keep Chrome installed for websites that don’t work perfectly in Comet.
FAQ
Q: Is Comet browser free?
A: Yes. Comet itself is completely free to download and use. Free users get 10 searches per day. Perplexity Pro ($20/month) unlocks unlimited searches, but the browser application is free regardless.
Q: Is Comet safe?
A: Yes. Comet is built by Perplexity, a legitimate AI company funded by major investors. It doesn’t collect or sell browsing data, and searches are encrypted. No suspicious permissions required.
Q: Can I use both Comet and Chrome?
A: Absolutely. Most users keep both installed—Comet for research and fact-checking, Chrome for everyday browsing and websites with compatibility issues.
Q: Do I need Pro to use Comet?
A: No. Free Comet with 10 searches/day is fully functional. Pro removes that limit and adds faster responses, but the browser works fine without it.
Q: How long is the free Pro offer valid?
A: General users get 1 month free. Students with .edu email get 1 year free. The PayPal/Venmo promotion that offered 1 year free expired on December 31, 2025.
Q: Can I import my Chrome passwords?
A: Yes. Comet imports and encrypts Chrome’s password manager automatically on desktop.
Q: What if websites don’t work in Comet?
A: Approximately 5% of websites have compatibility issues. Simply open them in Chrome (keep Chrome installed). It’s a one-click switch.
Q: Is Comet available on mobile?
A: Yes! Comet launched on Android on November 20, 2025. You can download it from the Google Play Store (requires Android 12 or later). iOS is expected in 2026.
Q: Can I sync Comet across devices?
A: On desktop, bookmarks and passwords sync within your Perplexity account across Windows, Mac, and Linux installations. However, cross-device syncing between desktop and mobile isn’t available yet.
Q: Is Comet slower than Chrome?
A: Comet is 2-3 seconds slower on media-heavy sites. For text-based pages, the speed is nearly identical to Chrome. Overall performance is in the top 5 among all browsers.
Q: Can I set Google as my default search engine in Comet?
A: Yes. Change your default search engine in Comet Settings. Many users prefer Google for finding specific websites and use Comet’s sidebar assistant for AI-powered summaries and fact-checking.
Q: Does Comet work with browser extensions?
A: Partially. Comet supports some extensions, but the ecosystem is much smaller than Chrome’s 1M+ available extensions. If you rely heavily on specific extensions, verify they’re available for Comet before fully switching.
How to Use Comet
Fact-Checking While Reading
You’re reading a news article about technology policy. Highlight a claim about regulation dates. Ask Comet’s sidebar to verify it. Get cited sources in 3-5 seconds. This workflow is dramatically faster than traditional research.
Shopping and Price Comparison
Looking for a laptop but want to compare prices across retailers. Use Comet’s shopping assistant. Tell it your budget and requirements. It searches current prices from Amazon, Best Buy, and others simultaneously. All results appear in the sidebar—no tab-switching required.
Research and Learning
Students use Study Mode to research a topic across multiple websites. Ask Comet questions about information across all open tabs. Synthesize answers that pull from multiple sources without manually combining them.
On-the-Go Research (Android)
Use Voice Mode to ask questions hands-free while commuting or multitasking. The mobile app includes the same multi-tab summarization, so you can research across several open pages and get a synthesized answer.
For real-world examples of using Comet for shopping, see our guide on using Comet assistant for price checking.
What to Expect Your First Week
Days 1-2: Comet feels different. You’ll instinctively reach for Chrome several times.
Days 3-4: You start using the sidebar without thinking about it. The workflow becomes natural.
Days 5-7: You notice you’re opening far fewer tabs. Fewer context switches mean better focus.
After 1 week: Decide if the time savings justify the learning curve. Most people who use Comet for research find it worth keeping.
Reality check: If you don’t research or fact-check while reading, Comet won’t change your workflow. If you do this daily, you’ll probably stick with it.
Free Perplexity Pro Access
Comet comes with limited free access (10 searches/day). You can claim extended free Pro access:
- General users: 1 month of Perplexity Pro
- Students: 1 year of Perplexity Pro (show .edu email at signup)
What’s Included in Pro?
- Unlimited searches (vs. 10/day free)
- 3x faster responses (noticeably quicker on complex queries)
- Advanced AI models (access to latest reasoning models)
- Priority processing (your searches processed first during peak hours)
The free month is long enough to test whether Pro’s faster speed is worth $20/month if you continue using Comet.
What Happens When Free Access Expires
You’ll revert to free Comet (10 searches/day, slower responses). Your bookmarks, history, and all browser data stay intact. No automatic charges occur—it simply downshifts to the free tier.
Claim Your Free Perplexity Pro Today
When you download through this link, your free month (or year) of Pro activates automatically when you ask your first question. No credit card required.
Limitations You Should Know About
Performance on media-heavy sites. Comet runs about 2-3 seconds slower than Chrome on pages with dozens of images or video players. I notice this on news sites, image galleries, and YouTube. For text-based pages like blog posts and news articles, the speed difference is barely noticeable. Independent browser benchmarks from January 2026 show Comet scoring 90.83/100 in performance tests, ranking in the top 5 browsers overall and outperforming Firefox and Opera.
Website compatibility. Approximately 95% of websites work perfectly in Comet. The remaining 5% include some paywall sites (Medium, certain news outlets) and older websites with outdated code. Keep Chrome installed for these edge cases.
Agentic features are beta. Automation features (filling forms, adding to carts) don’t work reliably yet. They’re still being developed and refined.
Learning curve exists. Comet works differently from Chrome. It takes 1-2 weeks to feel natural. Most people adjust quickly.
Requires internet connection. Comet needs an active internet connection since it searches the live web. You can browse cached pages, but search functionality requires connectivity.
Mobile sync not available yet. Comet launched on Android in November 2025, but bookmarks and browsing history don’t sync between desktop and mobile yet. Cross-device syncing is coming in future updates.
iOS not released yet. According to Bloomberg, iOS was announced for late 2025 but has not launched as of January 2026.
Your Next Steps
This Week
Desktop: Download Comet Browser and Claim Your Free Month
Android: Get Comet on Google Play
Students: Claim Your Free Year of Pro
Try these specific searches to experience Comet’s core benefits:
- Fact-checking: “Fact-check this claim: [recent news headline you’ve seen]” — See how Comet finds current sources
- Shopping: “Compare laptop prices under $1,000 from major retailers” — Watch the sidebar display results without opening tabs
- Research: “What are the latest developments in [your industry] in 2025?” — Get current information with cited sources
After 1 Week
Evaluate whether Comet feels useful for your workflow. Does the browser-integrated AI assistant save you time? Do you prefer it to traditional search? Notice how much less tab-switching you’re doing.
After 1 Month
With Pro access, you’ll discover your actual usage pattern. If you regularly exceed 10 searches/day, Pro ($20/month) becomes valuable even after the free period ends. Most users find the speed improvement alone is worth the cost.
Want specific use cases?
Is Comet Worth Your Time?
Comet isn’t a replacement for Chrome. It’s a specialized tool for a specific job—getting answers from the web without leaving the page you’re on.
If you spend time researching online—whether that’s shopping, fact-checking, learning, or working—Comet makes that 20-30% faster. That doesn’t sound like much until you realize you’re doing it 20 times a day. Suddenly you’ve saved an hour of work.
The learning curve is minimal. After one week, Comet will feel as natural as Google. After two weeks, you’ll wonder how you ever browsed without it.
And right now, the timing is perfect. The free month (or one year for students) lets you test whether it actually works for your workflow before spending money. Most people who try it keep using it because they genuinely find it useful, not because of the hype.
Choosing between browsers? Check Atlas vs. Comet guide.
Final Thoughts
We spend a lot of time online. We might as well do it efficiently.
Comet won’t make you smarter. It won’t write your emails or do your thinking. But it will handle the repetitive parts faster, which frees you up to focus on what actually matters.
Try it. Spend a week with Comet. See if it genuinely saves you time. If it doesn’t, you delete it. If it does, you’ve found a tool that genuinely improves how you work.
