NotebookLM
Google's free research notebook that answers questions only from the sources you give it.
Free
Honestly? It’s a draw on the 7 things we checked. Your use case should decide.
Money-wise, Elicit is the friendlier option ($12 vs $20).
| Criteria | Elicit | Perplexity |
|---|---|---|
| Pricing model | Freemium | Freemium |
| Starting price | $12 ✓ | $20 |
| Free plan | Yes | Yes |
| User rating | — | — |
| Reviews | 0 | 0 |
| API | Yes ✓ | No |
| Platforms | web, browser-extension | web, ios, android ✓ |
| Popularity | 53k pts | 90k pts ✓ |
They’re neck and neck. Elicit shines for researchers and grad students doing literature reviews; Perplexity for anyone who wants faster, sourced answers than traditional search.
Yes — Elicit starts at $12, Perplexity at $20.
Elicit: Free · Plus $12/mo. Perplexity: Free · Pro $20/mo.
Google's free research notebook that answers questions only from the sources you give it.
Free
Ask a research question and see what the scientific literature actually says about it.
Free · Premium $11.99/mo
The everyday AI assistant most people try first, good at drafting, explaining and making images.
Free · Plus $20/mo
Google's AI assistant, at its most useful when it can see your Gmail, Docs and Drive.
Free · Advanced $19.99/mo