Perplexity Deep Research
ResearchWhen you don't just want an answer — you want the trail of breadcrumbs that proves it. The research assistant that actually shows its homework.
State-of-the-art on deep-research benchmarks. Every answer comes with inline citations and source links. Pro mode cross-references answers using multiple models including Claude and GPT.
The best Deep Research stack is gated to higher tiers, so heavy research sessions quickly become a subscription decision.