Perplexity is an AI search engine that provides direct, sourced answers instead of a list of links. Every response includes inline citations so you can verify claims against the original sources. It's particularly strong for research-oriented queries where accuracy and recency matter. The Pro tier adds access to more powerful models (including GPT-4o and Claude), longer and more detailed answers, file analysis, and image generation. Pro Search mode performs multi-step reasoning — breaking complex questions into sub-queries and synthesizing results across multiple sources. Perplexity has carved out a distinct niche between traditional search engines and conversational AI. It's the go-to tool for knowledge workers who need quick, reliable answers backed by verifiable sources rather than model-generated text that might hallucinate details.

What the community says

Perplexity has cultivated a strongly positive community on Reddit, with users in multiple subreddits describing it as having replaced Google for 90% of their daily queries due to its cited, real-time answers. Academic users highlight the citation-backed format as transformative for research workflows, and the Academic search mode receives particular praise. The most frequently cited criticism is hallucination risk — Reddit discussions specifically warn about convincingly wrong answers on niche topics that cite real-sounding but fabricated sources. Free tier limitations and a small context window limiting extended conversation are also common complaints. Based on community discussions from Reddit, Hacker News, and Product Hunt over the past 12 months.