AI Tools

Perplexity AI

The Next-Generation AI Search & Answer Engine

Founded: 2022
Founder: Aravind Srinivas
San Francisco
Updated: Jul 2026
Visit Official Site中文العربية
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Overview

Perplexity AI is a conversational search engine founded in 2022 by former researchers from Google, OpenAI, and Meta. Instead of serving list of hyperlinks, it reads web pages in real-time, compiles key findings, and writes structured answers with footnoted source links.

Core Features

Synthesized Answers

Reads and summarizes multiple web sources directly to save time

Inline Citations

Numbered footnotes pointing to original web sources for easy verification

Guided Search

Interactive Copilot that asks clarifying questions to detail your queries

Pages Creator

Generate standalone public articles from your research queries instantly

Model Switching

Pro users can swap between models like Claude 3.5 Sonnet and GPT-4o

File Upload Analysis

Upload document files and ask questions using real-time search context

How to Use

  1. Open Portal

    Go to perplexity.ai. A VPN is required if accessing from China.

  2. Ask Question

    Type in your question in natural language and press the search arrow.

  3. Verify Sources

    Check the top grid or click inline footnotes to visit source websites.

  4. Ask Follow-up

    Use the bottom dialog bar to ask follow-up questions in the same thread.

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Founding Story

Perplexity AI was founded in August 2022 by Aravind Srinivas, Denis Yarats, Johnny Ho, and Andy Konwinski. Aravind previously worked at OpenAI, while Denis Yarats was a research scientist at Meta. Designed to combat the ad-heavy and link-stuffed environment of modern search engines, Perplexity gained early investments from Amazon founder Jeff Bezos and NVIDIA. By early 2024, the company was valued at over $3 billion, standing out as the chief pioneer of AI-driven search.

3 Common Pitfalls Using Perplexity AI

The three most-reported gotchas from the community. Read these before you sign up to skip the trial-and-error.

#1Direct connection blocked in mainland China

Official sites, APIs, and apps are all blocked from mainland China. You need an airport/VPN with an overseas node — IPLC lines (e.g. YunTu) via HK/SG/JP are most reliable.

#2Chinese Visa/Master cards all fail

Domestic Visa/Master 100% fails on AI subscriptions. Use virtual cards (WildCard, Depay) or overseas Apple ID via App Store in-app purchase.

#3+86 phone / QQ mail rejected at signup

OpenAI/Anthropic/Google throttle +86 phones and QQ mail. Use Gmail/Outlook + overseas SMS providers (SMS-Activate) for reliable signup.

#4Frequent node-switching triggers bans

AI platforms are strict on risk: 3+ IP switches in 10 min flags your account. Stick to one node for 24+ hours per session.

FAQ

Yes, in mainland China, Perplexity servers are unreachable without a VPN.
Yes, the basic quick search is free. Perplexity Pro (using advanced models) is $20/month.

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