How to Use Comet AI
Imagine a browser that doesn’t just display web pages, it works for you. You type a request, and it handles the shopping, summarizes the videos, and even drafts your emails. That’s Comet AI, the new AI-powered browser from Perplexity. And the best part? It’s now free for everyone.
In this guide, I’ll show you exactly how to use Comet AI. We’ll cover the setup, the standout features, and the specific prompts that turn this tool from a neat demo into a daily productivity powerhouse. Let’s dive in.
What Exactly Is Comet AI?
Firstly, let’s clear up what Comet is, and what it isn’t. Comet is a desktop web browser built on Chromium (so it feels familiar), but it has a powerful AI assistant built directly into the interface. Secondly, think of it less like a traditional browser and more like a “personal research gremlin” that follows you around the internet.
Additionally, you don’t need a separate tab for a chatbot. Then, the AI lives in a side panel, ready to answer questions, complete tasks, and summarize content based on whatever page you’re currently viewing. Then, it’s designed to cut down the manual slog of clicking links, managing tabs, and digging through long-form content.
Why should you care? Because Comet automates the boring stuff. It finds key moments in YouTube videos, applies promo codes at checkout, and synthesizes information across multiple tabs. Consequently, you spend less time browsing and more time actually getting things done.
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Getting Started: Your First 5 Minutes with Comet AI
Ready to jump in? The setup process is surprisingly simple.
Step 1: Download and Install
Firstly, head to the official Comet website and click the Download Comet button. The page will automatically detect your operating system. Currently, Comet is available for Windows (10 and 11) and macOS (M1 chips or newer).
Step 2: Run the Installer
Secondly, once the download finishes, open the file and follow the installation prompts. It’s just like setting up Chrome or Firefox.
Step 3: Open and Onboard
Thirdly, Launch Comet. On the first run, you’ll see an animated splash screen. Follow the quick onboarding steps:
- Firstly, log in with your Google account or email.
- Secondly, choose whether to import your bookmarks and extensions from your existing browser.
- Then, set Comet as your default browser when prompted for the most seamless experience.
That’s it. You’re now ready to experience the internet with a co-pilot.
Core Features: What Comet AI Can Actually Do
Then, Comet packs several powerful features. Here’s how to use the ones that matter most.
1. Smart Task Automation
This is Comet’s headline act. You can ask it to complete multi-step web tasks using natural language.
How to use it:
- Firstly, on the home page, tap a suggestion like “Add today’s bestselling book to my cart”.
- Or, type your own request into the search bar. For example: “Find me the best deal on a Samsung Galaxy S25 Ultra that’s in stock and add it to my cart.”
Comet will then navigate multiple sites, compare prices, and take you directly to the checkout page. Then, you’ll notice blue edges around the browser window—that’s the visual cue that the AI is in control. You can also tap the assist button to review the step-by-step actions it took, which provides full transparency.
Then, Pro Tip: Use this for research tasks, too. I asked Comet to “Find jobs on LinkedIn for creative software companies that are looking for product managers,” and it handled the multi-site search automatically.
2. Instant Summarization
We’ve all been there: staring down a 45-minute keynote video or a 7,000-word white paper with only minutes to spare. Comet solves this.
How to use it:
- Firstly, navigate to a long article, research paper, or YouTube video.
- Secondly, open the AI assistant in the side panel.
- Thirdly, ask a specific question. Instead of “summarize this,” try: “Summarize this video in 6 bullets with timestamp references and the top three takeaways for professionals.”
Comet thrives on text context. For videos, it works best when there’s a transcript or accessible closed captions on the page. It can also find key moments in YouTube videos and extract thumbnail URLs without switching apps.
3. Automatic Promo Code Finder
Then, this feature alone might make Comet your new default browser for online shopping.
How to use it:
- Firstly, add items to your cart and proceed to the checkout page.
- Secondly, tap the search bar and say: “Find promo codes for this page and test them to make sure they work.”
Comet will then fetch codes from across the web, test them, and apply the valid ones to your order. It saves you the manual hunt and the frustration of expired codes.
4. Tab Management by Command
Tabs spiral out of control for everyone. Comet lets you tame them with simple voice or text commands.
How to use it:
Tap the tab icon, open the search bar, and say: “Delete all tabs older than 30 minutes.”
Instantly, your browsing session cleans itself up.
5. Voice-Powered Search and Actions
You can use your voice for almost anything in Comet.
How to use it:
Tap the search bar, use your keyboard’s microphone, and speak your request. For example:
- Firstly, “Give me recommendations for the best Android phone to buy.”
- Secondly, “Play the exact moment Neil Armstrong says ‘One small step for man.'”
The assistant will search across sites, compare options, or deliver you directly to the timestamp you requested.
10 Powerful Prompts to Unlock Comet’s AI
The real magic of Comet AI lies in how you talk to it. Vague prompts get you vague results. Specific prompts turn the AI into a precision tool.
Then, the real magic of Comet lies in how you talk to it. Vague prompts get you vague results. Specific prompts turn the AI into a precision tool. Here are ten prompts you can copy, paste, and adapt immediately.
Research Mode Prompt:
“Read only the visible content on this page and give me a 5-bullet summary, one line per section. Then list 3 assumptions the author makes, with quotes.” This works perfectly for long articles, whitepapers, and academic PDFs.
Compare and Contrast Prompt:
“Create a two-column table comparing the items on this page. Rows: pricing, limits or quotas, support options, data retention, and gotchas in footnotes. End with a one-sentence verdict.” Use this for pricing pages, product comparisons, and spec sheets.
Meeting-Ready Recap Prompt:
“Turn this page into a 3-minute briefing I can read aloud. Structure: opening hook in one sentence, three key points with one fact each, and a closing ‘ask.’ No hedging language.” Then, this is ideal for news articles, design docs, and policy proposals.
Social Atomization Prompt:
“Create a LinkedIn post with problem-solution-outcome, one stat, and a CTA. Also, create an X thread with 5–7 tweets, every 240 characters. Finally, give me a 60-second vertical script with a 5-second hook, 3 points at 15 seconds each, and a 10-second summary.” This helps turn video summaries into social content.
Evidence Hunter Prompt:
“List every statistic or number on this page with an inline quote and what the source appears to be. Tag each one as ‘primary source linked,’ ‘secondary,’ or ‘no source.'” This works brilliantly for science news, medical advice, and finance blogs.
Critique-as-a-Service Prompt:
“List 5 falsifiable claims on this page with quotes. Then write one paragraph each on how they could be wrong, including what data would disprove them.” Use this for hot takes, product announcements, and opinion posts.
Task Planner Prompt:
“Given the page, draft a checklist to implement the described changes in a real project. Group by prerequisite, migration, validation, and rollback. Then, keep each item to one line with a verb.” This is perfect for bug reports, release notes, and migration guides.
Shopping With Teeth Prompt:
“Based on this page, list what’s included, what’s not included but implied, the total cost after 12 months with listed fees, and the two most likely deal-breakers for a buyer like me. Then, ” Use this for e-commerce listings and SaaS trial pages.
Quote and Clip Finder Prompt:
“Extract the 3 most quotable lines, a statistic, and the most shareable 10–20 second moments with timestamps.” Then, this works great for video creation and content repurposing.
Voice and Tone Calibration Prompt:
“Rewrite the outputs to be confident, approachable, and specific—no buzzword salad, no techno-jargon.” This helps with polishing drafts for different audiences.
The Golden Rule of Prompting: Always define the scope, what to look at. Ask for the source with quotes or links. And demand a specific shape, like bullets, tables, or checklists.
Real-World Workflow Comet AI: From Video to Post in 20 Minutes
Let’s put this all together. Here’s a real-world example of how you can use Comet to turn a 30-minute video into multiple pieces of content in under 20 minutes.
Minute 0–3:
- Open the video in Comet. Ask for a timestamped summary with 3 key takeaways.
Minute 3–6:
- Ask for a LinkedIn draft. “Summarize for a business audience with a problem-solution structure and a clear CTA.”
Minute 6–9:
- Ask for an X thread. “Give me 5 punchy tweets with a hook, a stat, and one contrarian take.”
Minute 9–12:
- Ask for a 60-second vertical video script. Include a 5-second hook, 3 core points, and a 1-line takeaway.
Minute 12–15:
- Ask for a quick newsletter blurb. “Give me a 2-3 sentence recap with an open-ended question.”
Minute 15–18:
- Ask the assistant to double-check facts and flag any uncertain claims.
Minutes 18–20:
- Polish, copy, paste, and post.
Comet handles the heavy lifting of summarization and drafting. You add your unique perspective and hit publish.
Privacy and Limitations of Comet AI: The Honest Truth
Comet AI is powerful, but it’s not magic. Here’s what you need to know.
Privacy First: Comet stores your personal browsing data locally on your device. Then, it does not store your data online, which significantly enhances your privacy.
What It Can’t Do (Yet):
- Firstly, Comet completes tasks only while you keep the app open; background work is not supported yet.
- Secondly, it can’t fabricate results. If a promo code doesn’t exist or a product is out of stock, it will report its findings honestly.
- Thirdly, it’s designed for thinking and drafting, not for automatic posting. You’ll still use your native social apps for scheduling and publishing.
FAQ: Your Comet Q and A
Q: Is Comet really free?
A: Yes. Perplexity launched Comet for everyone at no cost in October 2025. Then, no subscription, waitlist, or invite code is required.
Q: Can I use Comet on my phone?
A: Currently, Comet is available for Windows and Mac desktops. Then, there is also a version for Android 12 or above, but the desktop experience is the flagship product.
Q: Will Comet replace my other browsers?
A: It can. Comet includes all standard browser features like tabs, bookmarks, and extensions. Then, you can import your data from Chrome and set it as your default.
Q: How do I get better summaries?
A: Be specific. Open pages with transcripts, ask for timestamped bullets, and define your audience. Instead of “summarize,” try “summarize for a non-technical manager in 5 bullets with key stats”.
Q: Can Comet access my email and calendar?
A: Yes, with your permission. Then, it can connect to tools like Gmail and Google Calendar to draft emails, summarize messages, and schedule meetings. You remain in control and approve all actions.
Q: What if Comet doesn’t complete a task?
A: It’s rare, but if it gets stuck, rephrase your command or try a more specific prompt for clarity.
The Bottom Line
Comet AI represents a genuine shift in how we interact with the web. Then, it moves us from passive browsing to active, automated task completion. Therefore, you don’t need to learn complex software. Then, you need to ask.
Start with one workflow—maybe summarizing a long video or finding a promo code. Then, use the prompts above. Add your own twist. Before long, you’ll wonder how you ever browsed without a co-pilot.
Now go ahead. Download Comet, ask it something bold, and see what the internet feels like when it actually works for you.