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Perplexity: search with answers and source citations.

Perplexity is an AI service for search and research. It is known as an answer engine: you ask a question and receive a composed answer with references to sources used. That differs from working solely through a list of search results yourself.

Perplexity in one minute

Perplexity retrieves information, processes sources and formulates an answer. Citations make checking possible, but do not prove every sentence is correct. On 8 October 2026, the range goes beyond answering questions and includes Research, Computer and the Comet browser.

Search engines and answer engines

A traditional search engine helps you find and visit sources. An answer engine also takes on some of the summarising and comparison. The boundary is not absolute: ordinary search engines display direct or generative answers too.

For example, you want to understand customers’ return questions about a product. Perplexity can collect relevant webpages and summarise patterns. Open the references afterwards: does the cited passage concern that product, is it current, and does it support the conclusion?

A source can be reliable while a summary adds something the source never said. Relevant evidence may also fall outside the retrieved selection. Treat an answer as an entry point into research, checking provenance and coverage.

Research, Computer and other products

The current product documentation places Deep Research within Perplexity Computer. Research addresses questions requiring multiple search and analysis steps. Computer combines research with tools to develop the result further, for example into a report or presentation. Capabilities depend on access and subscription.

Comet is the browser with its own AI assistant. A browser task has a different context from an isolated search question: the system can work with pages and permitted actions. Do not mistake a proposed action for an action actually completed.

Perplexity uses different models and tools. Its brand therefore does not identify a single underlying language model. Developers also have an API offering. The precise model selection or subscription price is not a permanent characteristic of an answer engine.

What does Perplexity mean for SEO and GEO?

Perplexity matters for GEO and AEO because information may appear inside an answer, sometimes without an immediate click. Clear definitions, specific evidence and accessible source pages help people and systems interpret content. They do not guarantee a citation or a fixed position.

Combining retrieval with generation is related to RAG: supplementary information is brought into the question before an answer is assembled. This explains the broad mechanism, not Perplexity’s complete selection or ranking system.

Track visibility alongside actual visits and enquiries. Record the question, date, cited sources and any mistakes when checking an answer. A snapshot is not a universal ranking. GEO complements SEO foundations here; it is not a demonstrated replacement. Advertising spend is likewise not an established factor in organic source selection.