#1
Perplexity
Answer engine that searches the web and returns cited summaries.
💲 Free; Pro ~$20/mo
Best everyday research UX with sources
Research & agents Visit ↗Shipstack / Stacks Compare / Research & agents / Perplexity vs ChatGPT Deep Research
Perplexity vs ChatGPT Deep Research
Side-by-side from the Research & agents ranking · Updated 2026-10-28
Quick answer
Perplexity ranks #1 — Best everyday research UX with sources. Pick it for: Cited answers with web search. ChatGPT Deep Research ranks #2 — pick it for: Multi-step research reports.
| Perplexity | ChatGPT Deep Research | |
|---|---|---|
| Rank | #1 in Research & agents | #2 in Research & agents |
| Best for | Cited answers with web search | Multi-step research reports |
| Pricing | Free; Pro ~$20/mo | Plus/Pro plans |
| Why it ranks | Best everyday research UX with sources | Strong multi-hop research with structured reports |
| What it is | Answer engine that searches the web and returns cited summaries. | OpenAI's deep research mode that plans, browses, and writes long reports. |
| Last verified | 2026-10-28 | 2026-10-28 |
Full pages: Perplexity · ChatGPT Deep Research. Rankings are editorial; sponsorships never change rank.
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#2
ChatGPT Deep Research
OpenAI's deep research mode that plans, browses, and writes long reports.
💲 Plus/Pro plans
Strong multi-hop research with structured reports
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