Best AI tools for
Best AI tools for Research
AI research tools search the web or scientific papers and answer with citations. Always open the sources for important claims, as even the best tools make mistakes.
Compare at a glance
| # | Tool | Pricing | Free plan | API | Best for |
|---|---|---|---|---|---|
| 1 | Perplexity | Freemium | Yes | Yes | Quick research with sources you can check |
| 2 | ChatGPT | Freemium | Yes | Yes | Everyday questions, writing, brainstorming and file analysis |
| 3 | Gemini | Freemium | Yes | Yes | People who live in Google Workspace and Android |
The full ranking
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#1
Perplexity
- Freemium
- Free plan
- No sign-up
- API
AI answer engine that searches the web and cites its sources
Best for: Quick research with sources you can check
- Cites sources for every answer
- Usable without an account
-
#2
ChatGPT
- Freemium
- Free plan
- API
OpenAI's general-purpose AI assistant for writing, analysis, images and more
Best for: Everyday questions, writing, brainstorming and file analysis
- Very broad feature set in one app
- Large ecosystem of custom GPTs and integrations
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#3
Gemini
- Freemium
- Free plan
- API
Google's AI assistant, connected to Search, Gmail, Docs and other Google apps
Best for: People who live in Google Workspace and Android
- Deep Google Workspace integration
- Good free tier