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1. Perplexity
Research agent
Best for: fast cited market research
Answer engine that searches the web and writes cited reports.
- Starting price
- Free; Pro $20/mo
The best AI deep research agents (2026)
Deep research agents that read many sources and write cited reports for you. Compared on starting price and what each one does best.
Quick comparison
| Agent | Best for | Starting price | What it does |
|---|---|---|---|
| Perplexity | Fast cited market research | Free; Pro $20/mo | Answer engine that searches the web and writes cited reports. |
| ChatGPT Deep Research | In-depth business reports | Free; Plus $20/mo | Browses many sources for minutes and returns a long cited report. |
| Gemini Deep Research | Google Workspace users | Free; AI Pro $19.99/mo | Plans a research task, reads many sites and drafts a structured report. |
| Elicit | Research from scientific papers | Free; Plus $11/mo (yearly) | Searches 138M+ academic papers and writes evidence-backed reports. |
| Manus | Hands-off multi-step research | Free; Pro from $20/mo | Autonomous agent that researches and produces reports, slides or sites. |
| Genspark | Research turned into deliverables | Free; Plus $24.99/mo | Super Agent that researches, then builds slides, sheets and pages. |
Prices in USD from each vendor’s official pricing page, checked October 2026. Some links may be affiliate links; that never changes our picks.
Showing 6 AI research agents
2. ChatGPT Deep Research
Research agent
Best for: in-depth business reports
Browses many sources for minutes and returns a long cited report.
- Starting price
- Free; Plus $20/mo
3. Gemini Deep Research
Research agent
Best for: google Workspace users
Plans a research task, reads many sites and drafts a structured report.
- Starting price
- Free; AI Pro $19.99/mo
4. Elicit
Research agent
Best for: research from scientific papers
Searches 138M+ academic papers and writes evidence-backed reports.
- Starting price
- Free; Plus $11/mo (yearly)
5. Manus
Research agent
Best for: hands-off multi-step research
Autonomous agent that researches and produces reports, slides or sites.
- Starting price
- Free; Pro from $20/mo
6. Genspark
Research agent
Best for: research turned into deliverables
Super Agent that researches, then builds slides, sheets and pages.
- Starting price
- Free; Plus $24.99/mo
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Every price on Klyvoo comes from the vendor’s official pricing page. How we review