To use Perplexity AI, go to perplexity.ai or open the app, sign up free with an email or Google account, and type a question into the search box — you'll get a written answer with numbered sources under it in a few seconds. From there, the parts worth learning are installing it on the devices you actually use, knowing when to reach for Focus modes or Deep Research, and understanding what the free plan already covers before you pay for anything.
Short answer: Sign up free at perplexity.ai, type a question, and read the cited sources under the answer. Install the browser extension and mobile app so it's available everywhere, and try the Assistant on Android or iOS for voice tasks. Free covers real search and casual use; Pro ($20/month) adds higher limits, Comet browser access, and top-tier models.
I've used Perplexity as a daily driver for over a year, and for this guide I set up a fresh account and walked through every entry point — web, browser extension, mobile app, and the Assistant — to confirm what a brand-new user actually sees today. Here's what happens at each step, what's genuinely different about Perplexity versus a regular chatbot, and the mistakes that make people quit before they've seen what it's good for.
What you'll need
Nothing to install just to try it. Go to perplexity.ai in any browser, or download the app on iOS or Android — a free account with email, Google, or Apple sign-in gets you real search and citations with no credit card. If you want the browser extension (autocomplete-style search from your address bar) or the Comet browser, both install in a couple of minutes on Mac or Windows. Have a real question ready before you start; a specific first question, not a test like "hello," is the fastest way to see whether Perplexity fits how you actually work.
Step-by-step: How to use Perplexity AI
1. Create your account
Go to perplexity.ai and click Sign Up, or open the mobile app and do the same. Email, Google, and Apple sign-in all work, and no payment method is requested for the free plan. You land straight in the search box — there's no onboarding tour to click through first.
2. Ask a specific question
Type your question and press enter. A specific question ("what did the Fed decide at its July 2026 meeting" beats "tell me about interest rates") gets a tighter, more useful answer, since Perplexity writes its response directly from the sources it finds rather than from memory alone.
3. Read the citations, then ask a follow-up
Every answer comes with numbered sources you can click to check. Perplexity keeps the thread going, so type a follow-up in the same box — "now compare that to last quarter" — and it uses the prior answer as context instead of starting over.
4. Install it where you'll actually use it
Add the Perplexity browser extension (Chrome, Edge, Firefox, Safari) to search from your address bar, or install the Comet browser for an AI-native browsing experience built around the same assistant. Both are free to install; Comet's full Pro-tier features are gated behind a paid plan, but the browser itself no longer requires one.
5. Switch Focus mode or turn on Deep Research when the question needs it
Click the Focus selector to narrow results to Academic papers, Video, or Social sources, and toggle Deep Research for anything with real sub-parts, like a multi-point comparison. I cover exactly when each one earns its extra time in how to use Perplexity for research, since that's a deep enough topic to deserve its own walkthrough.
6. Try the Assistant on mobile
On Android or iOS, open the Perplexity app's Assistant and talk to it directly — it can check your calendar, draft a text, pull up directions, or book a reservation by calling into other apps on your phone, not just answering a question in a text box, per Perplexity’s own help center. It's the closest thing Perplexity has to a Siri or Google Assistant replacement.
Example prompts you can copy
A bare topic gets a bare answer. Prompts that state the comparison, the format, or the constraint you want back do better:
- "What's the current price of [product]? Cite the seller's own page and the date."
- "Compare [option A] and [option B] on price and the single biggest limitation. Cite your two most recent sources."
- "Summarize this article in five bullet points, then flag anything I should double-check: [paste link or file]."
- "I'm deciding between [A] and [B] for [use case]. Give me a one-line recommendation, then the reasoning below it."
- "Explain [topic] the way you would to someone who understands [related topic] but hasn't seen this specific version of it."
Common mistakes to avoid
The one I made early on: never clicking the citations, just trusting the summary. Perplexity is good about attaching sources, but a source being listed isn't the same as the claim being read correctly — check anything you'll repeat as fact. Second, sticking with a plain search on a question that actually has three parts, then being unimpressed that the answer felt shallow; that's a Deep Research job. Third, ignoring Focus modes entirely — a scientific question answered with "All" sources instead of Academic will happily cite a random blog post. Fourth, only ever using the web app and never installing the extension or mobile app, which means retyping questions you could have asked from your address bar or your phone in two seconds. And fifth, assuming Perplexity writes as well as it searches — in my testing it's genuinely strong at sourced answers and noticeably flatter at long-form drafting, so hand the actual writing to a tool built for that.
Free vs. Pro vs. Max, at a glance
Free is a real product, not a stripped demo — the gap to paid plans is mostly about daily limits and which underlying models you can pick.
| Plan | Price | Deep Research & Pro Search | Model access | Best for |
|---|---|---|---|---|
| Free | $0 | A handful of Pro Searches and one research query per month | Perplexity's default model | Casual search, trying it out |
| Pro | $20/mo (~$200/yr annual) | Much higher weekly allowance | GPT-5, Claude Opus 4.6, and others by choice | Daily research, writing, Comet's full features |
| Max | $200/mo (~$2,000/yr annual) | Highest tier, priority | Broadest model access | Heavy daily use, frontier-model comparison |
| Education Pro | $10/mo (student verification required) | Same as Pro | Same as Pro | Verified students who want Pro at half price |
Perplexity's pricing has moved more than once in the last year, so treat the exact daily-limit numbers as a snapshot rather than a permanent figure — confirm current details on Perplexity’s own pricing page before you buy. What's held steady since the changes: Pro sits at $20/month, Max at $200/month, and the Education tier at $10/month for verified students, and Comet browser access — image and video generation, plus the higher usage ceiling — is what Pro is actually buying you over Free.
Tools that make this easier
Perplexity isn't the only assistant worth having open, and it isn't built to do everything. If your question is genuinely research-heavy — multi-source comparisons, literature summaries, a recurring project — how to use Perplexity for research goes deep on Focus modes, Deep Research, and Spaces specifically. If you're deciding whether Perplexity or a general assistant fits your day better, I ran both through the same brief in Perplexity vs. ChatGPT, and separately looked at how to use ChatGPT’s search engine if citations are the only feature you actually want. When the job shifts from finding an answer to producing a finished piece of writing, how to use Claude AI is the strongest option I've tested for that handoff, and my ranked best AI writing tools guide covers dedicated tools that go further than any chat assistant for volume writing. If you want to see how AISagely scores tools like this one in general, how we rate AI tools explains the method.
My take
Perplexity's free plan is genuinely usable, not a funnel — I'd tell most people to stay on it until they hit a real limit, which is usually the daily Pro Search cap or wanting Comet's full feature set. Pro's $20/month buys that back cleanly, and Education Pro at $10/month is the easy call if you can verify student status. The habit that matters more than which plan you're on: install it where you'll actually use it — extension, app, or both — and open the citation before you repeat a claim as fact. Get that right and Perplexity is one of the fastest ways to get a checkable answer, on any plan.
Frequently Asked Questions
Is Perplexity AI free to use?
Yes. Sign-up requires no credit card, and the free plan includes real search, citations, and a limited number of Pro Searches and Deep Research queries. Pro ($20/month) and Max ($200/month) raise those limits and add broader model access and Comet's full feature set.
How long does it take to learn how to use Perplexity AI?
A few minutes for the basics — sign up, ask a question, read the citations. Getting comfortable with Focus modes, Deep Research, and when to use the mobile Assistant instead of a text search usually takes a handful of real sessions.
What is the easiest way to get good results from Perplexity?
Ask a specific question instead of a bare topic, pick the right Focus mode for scientific or niche source types, and click the citation before you repeat anything as fact rather than trusting the summary alone.
Do I need the app, the extension, or the website?
No single one is required, but they cover different moments: the website works anywhere, the browser extension saves you a tab switch from your address bar, and the mobile app adds the voice-driven Assistant for tasks like reservations and directions.
Is Perplexity's Comet browser free now?
Yes. Comet is free to install for anyone, on Mac, Windows, iOS, and Android; some of its more advanced features are tied to a Pro or Max subscription rather than the browser itself.