Perplexity

Category: AI Search/Research

Answer engine with citations, and a real research workflow.

Perplexity answers questions with inline citations to the sources it used, which is the behaviour that makes it genuinely useful for marketing research rather than just another chatbot: you can check where a claim came from. Beyond basic search there are focus modes for academic, social and other source types, a research mode that runs multi-step investigations and returns a structured report, Spaces for organising work around a topic with your own uploaded files, and the Comet browser. For developers there is an API covering search, orchestration and embeddings, plus two first-party MCP servers. Note the MCP position carefully: tool calls through the API server are billed at standard API rates against a paying API organisation, so a consumer Pro or Max subscription does not cover it. Also worth knowing that the older Sonar API pricing widely quoted online is being retired.

Our verdict

The citation behaviour is the reason to use it, and for research work it is a meaningful advantage over assistants that produce fluent text with no way to check it. Research mode produces something closer to a usable briefing than a chat answer, and Spaces keeps a project's sources together. For competitive research, pricing checks and market sizing it is the tool we would reach for first. Two things to be aware of. The MCP server is not covered by a consumer subscription, which catches people out: you need a paying API organisation and calls bill at API rates. And the company is defending several US lawsuits from publishers and retailers over how it accesses content, with Cloudflare having removed it from its verified bot programme over stealth crawling. None of that affects you as a user directly, but it is a live question about how the underlying index is built. There is no EU or UK data residency, and zero data retention is a negotiated option rather than a default.

Best for: Marketers doing competitive and market research who need to verify sources, and anyone who wants search results rather than confident invention.

Pros

  • Inline citations mean you can verify where a claim came from
  • Research mode produces a structured briefing rather than a chat answer
  • Spaces organise sources and uploaded files around a project
  • Two first-party MCP servers, plus a mature search and orchestration API
  • Focus modes let you restrict to academic or social sources
  • Genuinely useful free tier

Cons

  • MCP is not covered by a consumer subscription, you need a paying API organisation
  • Several live US lawsuits from publishers and retailers over content access
  • Removed from Cloudflare's verified bot programme over stealth crawling
  • No EU or UK data residency, and zero data retention is negotiated rather than default
  • The widely quoted Sonar API pricing is being retired, so older comparisons are stale
  • USD pricing only

Pricing: Free + Pro $20/mo (Freemium)

Rating: 4.5/5