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Side-by-side comparison
Gemini Notebook vs Perplexity
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| What matters | 📓 Gemini Notebook | 🔮 Perplexity |
|---|---|---|
| What it does | Gemini Notebook (formerly NotebookLM) is Google's source-based notebook assistant for understanding documents and building research outputs. Free tier available. | AI search and research assistant that returns source-linked answers, with free and paid research options. |
| Best for | Source-grounded study and research notebooks | Source-linked web research and questions |
| Pricing model | Free plan + paid | Free plan + paid |
| Plans | Standard (free): $0 With Google AI Plus: US$4.99/month With Google AI Pro: US$19.99/month With Google AI Ultra: From US$99.99/month | Plan details not recorded yet |
| Free-plan limits | Free (Standard) allows up to 100 notebooks and 50 sources per notebook (Plus 200/100, Pro 500/300, Ultra 500/500 or 600). Since 2 September 2026 usage limits are compute-based and refresh every five hours; Google publishes no fixed daily number for free users, and its plans help page still mentions daily and monthly quotas. Limits are subject to change. | Standard (free): 3 Pro Searches per day, 1 research query per month, practically unlimited basic searches, limited file uploads; no advanced AI models, file/app creation, image generation or Comet Assistant queries. API is pay-as-you-go with no complimentary credits. |
| Platforms | Web | Web |
| Key capabilities | Source-based questions Document analysis Notebook organisation Research outputs | Source-linked answers Web search Research tools Model choice on eligible plans |
| Strengths | A notebook organised around your own sources fits a bounded research brief A free Standard tier with 100 notebooks and 50 sources per notebook Included with Google AI plans and some Workspace plans, with no separate price | Source-linked answers make the verification trail easier to inspect. |
| Limitations | No published number of free chats or Audio Overviews; limits are compute-based and refresh every five hours since 2 September 2026 Google's help pages are not fully consistent about limits, so numbers in older articles may be wrong Source selection limits the answer; missing or outdated documents remain your responsibility | Standard is free with basic access and limited advanced usage. Paid plans increase research and model allowances; API usage is billed separately. Citations are starting points: a real URL can still support a different claim. |
| No signup required | No | Not verified |
| No credit card required | Not verified | Not verified |
| Free trial | Not verified | Not verified |
| Details last reviewed | 2026-10-29 | 2026-10-06 |
| Official pricing / source | Check pricing | Check pricing |
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