What Is Perplexity? How to Use This 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
AI Friends(https://aifriends.jp)のクロスポスト公式アカウント。AIツールの紹介・使い方・できることを、中学生でもわかるやさしい日本語で届けます。
In this article, we'll explain the popular AI search engine "Perplexity" in a way that anyone can understand. We'll cover how to use it, its handy features, and who it's best suited for.
Perplexity AI is a next-generation search engine powered by AI. Unlike Google, which simply finds information for you, Perplexity's AI automatically reads content from the web and delivers clear, well-organized answers.
As of April 2026, Perplexity has evolved far beyond a simple search tool.
You can freely switch between the latest models like GPT-4 and Claude (a high-performance AI capable of writing in a natural, human-like style).
It even comes equipped with features that automate complex research tasks.
Its standout characteristic is that it always shows the source of the information it provides.
This means you can verify for yourself whether the AI's answer is actually correct.
It's best described as a tool that combines the best of Google Search and ChatGPT.
Perplexity offers many useful features to support your research and learning. Here, we introduce five of its main capabilities.
A feature that digs deeper than a standard search.
The AI reads 20 to 30 or more sources and compiles a detailed, thorough answer.
It's especially useful when writing papers or gathering materials for work.
Automatically investigates the equivalent of tens to hundreds of pages of information and generates a long-form report.
Simply enter a topic, and the AI autonomously collects and organizes the relevant information.
It dramatically cuts down the time spent on time-consuming research.
A feature that lets you save and organize knowledge by topic.
For example, you can create spaces like "English Learning" or "Programming" and keep related questions and answers neatly organized.
You can also share spaces with a team.
A feature that lets you publish your research results as a web page.
The layout is clean and blog-like, making it easy to share with others.
It's ideal for anyone who wants to compile and share information.
You can switch between multiple AI models, including GPT-4, Claude, and Gemini (Google's AI). Choosing the best AI for your needs means you can get more accurate answers.
Perplexity is easy to use even for beginners. Here, we walk through the basics in four steps.
Visit the official Perplexity website (perplexity.ai).
You can register for free using your email address or a Google account.
Registration takes about one minute.
Type what you want to look up into the search box in natural language.
You can ask questions like "What is AI?" or "How do I get started with Python?" in plain, conversational sentences.
The convenience is that you can ask in full sentences, not just keywords.
The AI searches the web and displays a clear, well-organized answer.
Below the answer, the sources (the websites the information came from) are always shown.
You can click them to read the original articles.
If there's something more you want to know after reading the answer, you can continue asking questions.
The back-and-forth feels natural, like a conversation, which helps deepen your understanding.
Since it remembers the context of previous questions, the conversation flows smoothly.
Perplexity has its conveniences as well as points to be aware of. It's reassuring to know both before you start using it.
Perplexity is a useful tool for a wide range of people, but it's especially recommended for the following:
Perplexity AI is a next-generation search tool that takes the best of both Google Search and ChatGPT. Let's recap the key points from this article.
Perplexity has continued to evolve further into 2026.
If you want to improve the efficiency of your research and learning, give it a try.
Since you can get started for free, we encourage you to use it casually and see for yourself.
This article is a cross-post from AI Friends.