Perplexity AI
Perplexity was developed by former Google engineers aiming to create “ad-free search.” It eliminates the hassle of manually clicking through multiple links to verify content, unlike traditional search engines. When you ask a question, the AI instantly scans multiple websites online and synthesizes the answer into a single sentence. It always clearly indicates which information from which sites formed the basis of that answer, complete with numbered references. This feature has earned strong support from people who value the reliability of information.
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Categories: Research & Science
Tags: Free
Other versions of Perplexity AI
For detailed specifications and features of each Perplexity AI model, please refer to the detailed page for each version.- Feature Tool Labs by Perplexity
- Feature Tool Perplexity Assistant
- Feature Tool Pages by Perplexity
- Feature Tool Perplexity Shopping
Perplexity AI: An Honest Practical Review
Strengths
Perplexity is an AI that excels at rapidly advancing the initial stages of search and research. When asked about a specific topic, it organizes and returns information commonly discussed across multiple articles and explanations, making it invaluable for grasping the big picture. In practice, it significantly reduces time spent wondering where to start, making the research process feel much lighter
Points of Concern
While it's the strongest tool for research, it struggles a bit with emotional interactions like “deep counseling” or creating stories, unlike ChatGPT or Claude. Its role is fundamentally that of an “excellent researcher” skilled at gathering and organizing information, so don't expect responses that empathize with your feelings. Also, perhaps due to the surge in access around late 2025, the only potential weakness might be occasional delays in response times or a feeling of server sluggishness.
Overall Evaluation
Perplexity is easier to understand if positioned as an “AI that researches and organizes” rather than an “AI that generates ideas.” When used to efficiently gather materials or grasp the big picture, it delivers exceptionally high performance.
Perplexity AI :Q&A
How do I get started with Perplexity AI? Do I need an account?
You can use the search features immediately without creating an account.
By logging in with a Google or Apple account, you unlock advanced features such as search history, AI model switching, and file uploads.
The mobile app is also extremely popular.
Who owns the content generated by Perplexity AI? Is commercial use allowed?
Commercial use is generally allowed.
However, Perplexity specializes in citing and summarizing information from the web.
Since original sources retain their own copyrights, standard citation rules should be followed when reusing content in blogs or publications.
What are the pricing plans for Perplexity AI? Is it free or paid?
The free plan is sufficient for most search use cases.
【Paid Plan (Perplexity Pro)】
The main advantage is relaxed daily usage limits for Copilot searches and the ability to switch between AI models such as GPT-4o and Claude 3, depending on your needs.
View all questions
Is Perplexity AI safe? Is there a risk of personal data leakage?
By disabling AI data retention in the settings, your inputs will not be used for model training.
As with any search tool, care should be taken when entering confidential information, but proper security settings allow safe professional use.
Is it easy to cancel or stop using Perplexity AI?
Pro subscriptions can be canceled at any time from the settings page.
You can also delete your account entirely, though Perplexity can be used without logging in, making anonymous usage an option.
What kind of company developed Perplexity AI?
Perplexity AI is a U.S.-based startup founded by former engineers from Google and OpenAI.
It aims to redefine traditional search engines and has received investment from major players such as Jeff Bezos and NVIDIA, making it one of today’s most closely watched AI unicorns.
What can Perplexity AI actually do? How is it used in practice?
It is a research-focused AI that always provides sources alongside answers.
Research: Conduct market research with verified sources
Fact-checking: Reduce hallucinations by validating claims
Model comparison: Switch between GPT-4 and Claude models (Pro)
Rather than casual conversation, it is primarily used as a powerful and reliable search engine.
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