How to Use Perplexity AI: Modern Search Built on Top of LLMs
In 2024 the way people search the internet started to shift. By 2026, millions had moved part of their Google searches over to a tool that combines real-time search with language models: Perplexity AI. Instead of returning ten blue links, it delivers a direct answer with cited sources, and lets you keep the conversation going to dig deeper.
This guide explains what Perplexity is, how to start using it, the advanced features (Pro Search, Spaces, Pages), and when it beats Google or ChatGPT. By the end, you can decide whether the Pro plan is worth it or if the free tier already solves your needs.
What Is Perplexity AI
Perplexity AI is a conversational search engine launched in 2022 by Perplexity, a company founded by Aravind Srinivas (ex-OpenAI), Denis Yarats, Johnny Ho, and Andy Konwinski. The pitch is to combine three things that traditional tools offer separately:
- Real-time search on the web (like Google)
- Natural language understanding (like ChatGPT)
- Mandatory source citation (like Wikipedia)
The user asks a question in plain language — “What is the impact of EU AI regulation in 2026?”, and Perplexity searches dozens of pages, reads the content, synthesizes an answer, and shows numbered sources for verification.
In 2026 Perplexity passed 30 million monthly active users and raised over $500 million in funding, with a valuation above $9 billion. Investors like Jeff Bezos, NVIDIA, and SoftBank came in early.
How to Get Started
Entry to Perplexity is simple and free:
- Go to perplexity.ai
- You can use it without logging in, but creating an account (Google or email) saves history and Spaces
- Type the question into the main bar
- The answer appears in seconds, with sources numbered like
[1] [2] [3] - Each number is clickable and opens the original site in a new tab
On the first screen you already get Quick Answer — the default mode that delivers a fast response. For more complex questions, you will want to know the other features.
Core Features
1. Quick Answers vs Pro Search
There are two search modes:
Quick Answers (free): Perplexity runs a standard search, reads 5-10 sources, and produces a direct answer. Ideal for factual questions, definitions, and quick updates. Uses models like Sonar (Perplexity’s proprietary model based on Llama).
Pro Search: the advanced version runs multiple searches in parallel, iteratively refines queries, and analyzes more sources (up to 30+). Uses premium models (GPT-4o, Claude 3.5 Sonnet, Gemini 1.5 Pro, or Perplexity’s own models). It is the difference between a surface-level lookup and real research.
Free accounts get 5 Pro Searches per day. Pro accounts get 600+.
2. Focus Modes
Before asking, you can narrow the search scope:
- Web: default, searches any site
- Academic: prioritizes scientific papers, repositories like arXiv and PubMed
- Writing: disables web search and uses only the LLM (useful for generating text)
- Wolfram Alpha: math calculations and structured data
- YouTube: searches directly in video transcripts
- Reddit: searches real user discussions
- Social: posts on social networks
This selector is the small detail that saves the most time. Researching a product on Reddit before buying gives a far more honest picture than affiliate sites.
3. Spaces (formerly Collections)
Spaces are smart folders where you organize searches related to a project. Each Space can have:
- Custom instructions (system prompt) that bias every search inside
- Uploaded files (PDF, spreadsheets) that become a knowledge base
- Project thread history
- Sharing with collaborators
Typical cases: market research for a new product, university thesis, investment due diligence. You set instructions once and every question inside the Space respects the context.
4. Pages
Released in 2024, Pages turns a research thread into a publishable article. You run the search, adjust the structure (intro, sections, conclusion) and Perplexity formats a page with a public, shareable URL.
Useful for:
- Quick briefings to send to clients
- Draft blog posts
- Internal wikis fed by ongoing research
- Thematic compilations
Pages indexes on Google, so it can attract organic traffic if the content is high quality.
5. Perplexity Comet (Browser)
In 2025 Perplexity launched Comet, its own browser with built-in AI. It replaces Chrome/Edge and has Perplexity as a native assistant in any tab, you can ask for a summary of any page, draft an email, or ask about open content. Available for Pro/Max users on macOS and Windows.
Perplexity Pricing in 2026
The plan structure:
| Plan | Price/month | Pro Searches | Premium Models | Pages/Spaces |
|---|---|---|---|---|
| Free | $0 | 5/day | No | Limited |
| Pro | $20 | 600+/day | Yes (GPT-4o, Claude, Gemini) | Yes |
| Enterprise Pro | $40/user | Practically unlimited | Yes + governance | Yes + admin |
| Max | $200/month | Everything + Comet pro features | Top models + priority access | Everything |
Free is already useful — for casual usage it solves the problem. Pro at $20/month is the most common plan among professionals who research daily.
People already paying for ChatGPT Plus ($20) often swap one for the other: Perplexity is better for research, ChatGPT better for creative generation and code.
Real Use Cases
Journalists: first layer of research to verify facts, check claims, and find official sources. Citations cut the work of “finding the original source.”
Investors: company analysis, product comparisons, and trend research. Custom Spaces per investment thesis.
Students: academic work with Focus mode set to Academic, returns only papers and scientific sources.
Conscious shoppers: product reviews via Reddit Focus mode. Real users complaining about defects before you buy.
Marketing professionals: mention monitoring, competitive research, and report generation.
Doctors and lawyers: research on updated clinical protocols or recent case law, always with cited sources for verification.
For those combining research with content publishing, it pays to pair Perplexity with AI-automated blogging tools.
Perplexity vs Google vs ChatGPT
The unavoidable question: which to use when?
| Criterion | Perplexity | ChatGPT | |
|---|---|---|---|
| Direct answer | Yes, with sources | No, gives links (and AI Overviews) | Yes, no native sources |
| Real-time search | Yes, default | Yes | Yes (with Search Tool) |
| Automatic source citation | Yes, always | No | Inconsistent |
| Creative generation / code | Limited | No | Excellent |
| Product comparison | Excellent | Good | Limited |
| Pro base price | $20 | Free | $20 |
Practical rule:
- Factual questions needing sources: Perplexity wins
- Shopping, navigation, maps, live information: Google wins
- Text generation, code, creative brainstorming: ChatGPT wins
Many professionals use all three in parallel, each for what it does best.
Limitations
Perplexity is not perfect. Things to keep in mind:
- Answer quality depends on the quality of sources found. If the search lands on shaky sites, the synthesized answer inherits the problem. Always check the cited sources.
- Can hallucinate sources in extreme cases. Although it cites real URLs, in rare cases the synthesized content distorts what the source actually says. For critical topics, open the links.
- Does not replace deep research in specialized areas. Law, medicine, and science still require direct access to specialized databases (Lexis, PubMed, Westlaw).
- Spaces and Pages have limited quotas on Free. For professional use, the Pro plan is practically mandatory.
- Privacy. Questions become part of history (unless disabled). For sensitive topics, use anonymous mode.
Tips for More Efficient Research
A few practices that separate casual users from advanced researchers:
Use Pro Search for complex questions. The default mode is fast, but Pro Search iterates searches and delivers significantly deeper answers.
Use Focus modes to filter noise. “What are the best Bluetooth headphones in 2026?” in Web gives you affiliates. The same question in Reddit gives you real reports.
Create Spaces per project. Instead of running 30 loose searches, organize a Space per topic with custom instructions. Answers gain consistency.
Always check 1-2 cited sources. Perplexity is reliable, but critical reading is still your job.
Use the “Related questions” feature. Right after each answer, Perplexity suggests next related questions — great for going deeper without thinking about the next step.
FAQ
Is Perplexity AI free?
Yes, on the basic version. The Free plan offers unlimited searches in Quick mode and 5 Pro Searches per day. Advanced features require Pro at $20/month.
Is Perplexity better than Google?
For factual questions needing sources, yes. For navigation, maps, shopping, and live information, Google is still better. Use both in parallel.
Can I trust Perplexity’s answers?
More than traditional chatbots, because it cites sources. But manual verification is still needed on critical topics — rare hallucinations happen.
What is the difference between Perplexity and ChatGPT Search?
ChatGPT Search is the integrated search inside ChatGPT, launched in 2024. It works similarly, but Perplexity still leads in citation quality and source organization.
Does Perplexity store my search history?
Yes, by default. You can disable it in Settings > Privacy or use Incognito mode for questions that should not be saved.
Related reading
To go deeper, we recommend these iabrief articles:
- OpenAI’s $852 Billion Valuation in 2026: The Largest Private Funding Round in History
- Week in AI: agents at work, Gemini in cars and AI beating doctors (May 3, 2026)
- How to Use Google Veo 3.1 to Create AI Videos: Step-by-Step Tutorial (2026)
Official sources
For deeper context, see the official sources and authoritative references below:
