Perplexity's autonomous research mode — spends 10–15 minutes producing a comprehensive, fully cited research report on any topic.
Perplexity Deep Research conducts extended, autonomous research — rather than answering instantly, it spends 10–15 minutes searching, reading, and synthesising dozens of sources before producing a comprehensive report.
Included in Perplexity Pro ($20/mo) with roughly 5 deep research queries per day.
The workflow: submit a research question and Deep Research autonomously generates search queries, reads the most relevant results, identifies knowledge gaps, searches further, and iterates — emulating how a skilled researcher would tackle a complex question. The final output is a structured, multi-section report with numbered citations throughout.
Reviewers consistently find Deep Research produces outputs comparable to what a skilled research assistant would take 2–4 hours to compile.
Pros: Unmatched depth, fully cited throughout, autonomous gap-filling, included in Pro plan, fast considering the depth.
Cons: Takes 10–15 minutes, limited daily queries on Pro, occasionally misses highly niche sources.
Best for: Analysts, consultants, investors, journalists, and researchers who need thorough, cited research on complex topics and are willing to wait for depth over speed.