What Is Perplexity? A Beginner's Guide to Using the AI Search Engine and What It Can Do [2026 Edition]
機械翻訳 / Machine-translated
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機械翻訳 / Machine-translated
@aifriends
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Have you ever felt frustrated searching on Google, unable to find the answer you're really looking for? That's where the AI search engine "Perplexity" comes in handy. In this article, we'll explain Perplexity from the basics — what it is, how to use it, and what it can do — in simple terms that even a middle schooler can understand.
Perplexity is a next-generation search engine powered by AI technology. Unlike traditional Google Search, Perplexity's AI understands your question and delivers the answer as a written summary.
For example, if you search "delicious ramen restaurants in Tokyo," Google Search shows you a list of website links. Perplexity, on the other hand, responds with a written answer like "Popular ramen restaurants in Tokyo include ○○" — the AI compiles the answer for you.
As of April 2026, Perplexity is used by more than 45 million people per month and handles over one billion searches a month, making it a highly popular service. And since it's free to use, anyone can try it right now.
Perplexity is packed with useful features. Here are five of the main ones.
Perplexity lets you research information through conversation, much like ChatGPT.
After seeing the answer to your first question, you can follow up with things like "Tell me more" or "What are some other examples?"
It's perfect for gaining a deep understanding of whatever you're looking into.
Every AI-generated answer comes with citation links showing exactly which website the information was drawn from.
This means you can verify for yourself whether the information is actually correct.
This is one of Perplexity's defining features.
Available exclusively on the paid plan (Pro), Deep Research has the AI scan over 100 web pages and compile a detailed report for you. It takes around 2–5 minutes and does a thorough job of summarizing even complex topics.
A new feature introduced in February 2026.
It lets you research a single question using three different AI models simultaneously.
By comparing the perspectives of multiple AIs, you can obtain more accurate information.
Perplexity's latest feature for 2026 — an autonomous agent that can automatically browse the web, fill out forms, and carry out a series of tasks in sequence. You can hand off complex research or procedures directly to the AI.
Perplexity is extremely easy to use. Even first-timers can get started right away by following the steps below.
First, go to Perplexity's official website (perplexity.ai).
It works on both smartphones and computers.
You can start searching immediately without creating an account.
Enter what you want to look up in the search box on the screen. Rather than using "short keywords like you would in Google," try phrasing your query as a sentence — something like "Please tell me about ○○" — and you'll get much better answers.
Perplexity offers several search modes.
For everyday use, "Web Search" is more than sufficient, but if you're looking for papers or academic information, switch to "Academic" mode.
Pro users also have access to "Deep Research."
The AI will return an answer in written form.
Numbers like [1] and [2] appear within the answer; clicking them takes you to the original source (website).
Always check the sources to verify that the information is accurate.
After reading the initial answer, if there's anything you want to know more about, you can keep asking. You can follow up conversationally with things like "Tell me more," "What are some other examples?" or "Explain it for a beginner."
Every tool has its strengths and its caveats. Let's look at both sides of Perplexity.
Perplexity is especially recommended for the following types of people:
On the other hand, if you only need to look up simple everyday things, Google Search may be perfectly sufficient. Also, for information where accuracy is critically important — such as medical or legal matters — it's best to consult a professional.
Perplexity is a next-generation search engine where AI understands your questions and delivers answers in written form. Here are the key takeaways from this article:
Perplexity is a tool with the potential to fundamentally change the way we look things up.
Since it's free, go ahead and give it a try.
It's sure to make your research a whole lot easier.
This article is a cross-post from AI Friends.