Perplexity Deep Research
Perplexity's research mode: dozens of searches, hundreds of sources and a report in a few minutes.
By Perplexity · launched 2025-02-14 · last checked 2026-11-01
Why 4: it runs dozens of searches, refines its plan and writes a report on its own for you to check afterwards; it acts only when asked, so not a 5.
What it does. Launched on 14 February 2025, Deep Research runs dozens of searches, reads hundreds of sources, refines its plan as it goes and writes a report that can be exported or turned into a Perplexity Page. Perplexity claimed 21.1% on Humanity's Last Exam at launch. In February 2026 it moved to Claude Opus 4.6, first for Max users.
Where it falls short. Its benchmark figures are Perplexity's own. An April 2026 study found that 3–13% of citation URLs from commercial models and deep research agents likely never existed, with deep research agents fabricating at higher rates.
What it can do
Incidents
- None logged.
Closest fiction
Her — Samantha reading at superhuman speed.
Related research agents
- ChatGPT deep research OpenAI · autonomy 4/5
- Gemini Deep Research Google · autonomy 4/5
History
- 2026-11-01 Added to the index.
Sources
- Introducing Perplexity Deep Research Perplexity, 2025-02-14
- Perplexity Deep Research upgrades to Opus 4.6 for Max users Createwith, 2026-02-09
- Detecting and Correcting Reference Hallucinations in Commercial LLMs and Deep Research Agents arXiv (Rao, Wong and Callison-Burch), 2026-04-03
← All agents in the index · Autonomy is rated on what the product does today, on a 1–5 scale. Every fact links to a source.