Perplexity vs Gemini Notebook (formerly NotebookLM)
Our S-tier and A-tier picks in Best for Research, side by side.
| Attribute | Perplexity | Gemini Notebook (formerly NotebookLM) |
|---|---|---|
| Our tier | S-TIER | A-TIER |
| Best for | Web answers with cited sources | Q&A over your own documents |
| Verdict | Answer engine with cited web sources; adds automations and lets you pick top models such as GPT-6.1 and Claude Opus 5.5. | Google's tool for grounded Q&A and audio/video overviews over your own sources. Renamed from NotebookLM in Jul 2026; notebooks can now run code for data analysis. |
| Details | Perplexity page | Gemini Notebook (formerly NotebookLM) page |
Which should you pick?
Pick Perplexity if you want: web answers with cited sources. Pick Gemini Notebook (formerly NotebookLM) if you want: q&a over your own documents. See the full Best for Research tier list for more options.
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