Perplexity

What is Perplexity?

Perplexity is an AI-powered research and answer engine that combines web search with language-model summarization, and — unlike a typical chatbot — presents citations for its claims by default, so you can check the underlying sources. It's positioned as an alternative to traditional search for research-style questions. The free tier includes a generous number of searches per day; the Pro subscription adds more searches, access to more capable underlying models, and features like file upload and a broader set of specialized "Focus" search modes (academic, coding, etc.). Perplexity also offers an API for developers who want search-grounded AI answers in their own applications. The citation-first approach is what most differentiates Perplexity from a general-purpose chatbot with web browsing bolted on: every substantive claim in a response is typically linked back to a specific source, which makes it much faster to verify a fact or dig deeper into the original reporting than checking a chatbot's answer against a separate search afterward. Focus modes let you narrow the search scope — academic mode weights toward scholarly sources, for example — which is useful when the default web-wide search returns too much marketing content or low-quality SEO pages for a research task. Perplexity is used heavily for competitive research, due diligence, and fact-checking, precisely because the sourcing makes it easier to catch a wrong or outdated claim before it ends up in a report or decision. It's less suited to long creative writing or open-ended brainstorming, where the constant grounding in search results can make responses feel more like a summary of existing sources than a genuinely generative collaboration — for that kind of work, a general-purpose chatbot is usually a better fit.

Best use cases

• Research with citations
• Market and competitive research
• Fact-checking

Key features

• Cited sources
• Web search grounding
• Focus search modes
• File upload

A computed score based on documented features, pricing accessibility, free plan and integrations — not a user rating or a claim of hands-on testing. See our full methodology.

Recommended prompts

• Research and Summarize a Competitor
• Generate a Structured Blog Post Outline

Recommended workflows

• AI Workflow for Creating a YouTube Video
• AI Workflow for Writing an SEO Blog Post

Use cases

• AI for YouTube

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