Perplexity

Perplexity is a conversational answer engine that uses large language models to answer queries directly. Instead of a page of links, it synthesizes information from multiple sources into a single, well-cited response.

Core capabilities

• Cited sources — every answer includes inline citations, so you can verify claims and open the originals.
• Conversational follow-ups — refine and go deeper with follow-up questions in the same thread.
• Focus modes — narrow a search to specific domains such as academic papers, YouTube, or Reddit.
• Collections — organize research threads for later reference.

Where it fits. Quickly finding and summarizing information from sources; getting direct, synthesized answers without clicking through ad-heavy pages; and gathering initial research and citations for an article or brief.

Pricing. Perplexity is freemium — a free tier plus a paid Pro plan that raises usage and adds capabilities. Check the official site for current pricing.

Direct link: https://www.perplexity.ai