Quick answer

Perplexity AI is an AI-powered search engine that gives you direct answers with cited sources — instead of a list of links. For research questions, it is often significantly faster and more useful than Google. For navigating to specific websites or finding recent news, Google is still better.

Perplexity launched in 2022 and has grown to over 100 million users. It describes itself as "the answer engine" — and that is a good description. Instead of showing you ten blue links and hoping one is useful, it reads those sources for you and gives you a synthesised answer. Here is an honest breakdown of when it helps and when it does not.

How Perplexity works

When you ask Perplexity a question, it searches the web in real time, retrieves the most relevant pages, and uses an AI model to synthesise the information into a direct answer. Every claim in its answer is linked to a source — you can click through to verify anything. This is the key difference from ChatGPT, which generates answers from memory without real-time lookup.

Where Perplexity beats Google

  • Research questions — "What are the main causes of inflation in 2025?" gets a synthesised answer, not ten links to navigate
  • Comparing options — "What are the differences between Notion and Obsidian?" gives a clear comparison
  • Explaining complex topics — academic or technical questions get summarised well
  • No ads cluttering the results page
  • Follow-up questions — you can ask follow-ups and it maintains context

Where Google is still better

  • Finding specific websites — "YouTube login" or "NHS appointment booking"
  • Local search — "coffee shop near me" needs maps and reviews, not an AI summary
  • Breaking news — Google's news indexing is faster and more comprehensive
  • Shopping — Google Shopping integration has no equivalent in Perplexity
  • Visual search — Google Lens has no equivalent

Pricing and free tier

Perplexity's free tier is genuinely excellent — unlimited searches with access to its standard AI model. The Pro tier ($20/month) unlocks more powerful AI models (GPT-4o, Claude) and higher usage limits. For most people, the free tier is sufficient.

Practical tip: Use Perplexity when your query is a question. Use Google when your query is a destination (a website, a location, a specific product). They solve different problems.

Should you trust its answers?

More than ChatGPT — because it cites sources. But not unconditionally. Like any AI, Perplexity can misinterpret its sources or summarise them incorrectly. Always click through on important claims. Use it to find answers faster, not to replace critical thinking.

Bottom line

Perplexity is the best AI search tool available today, and genuinely competes with Google for research-style queries. If you have not tried it yet, start with one question you would normally Google — the difference is immediately obvious.