Community ratings, features, pricing and free plans: the complete head-to-head between NotebookLM and Perplexity AI to find the right tool for your needs.
VerifiedNotebookLM, Google's research assistant, reasons exclusively over the documents you feed it: PDFs, websites, YouTube videos or personal notes. It turns them into reliable, cited summaries and can even transform your sources into an audio podcast where two voices discuss the content — a feature that has achieved cult status. Powered by Gemini 3, it also generates video overviews and Deep Research reports.
VerifiedHalfway between a search engine and a conversational assistant, Perplexity answers your questions while systematically citing its sources. Every claim is linked back to the web pages it consulted, making it a valuable tool for market monitoring, documentary research and fact-checking.
| Criterion | NotebookLM | Perplexity AI |
|---|---|---|
| Average rating | 4.7 | 4.6 |
| Number of reviews | 231 | 441 |
| Free plan | Yes | Yes |
| Plans | Free, Plus, Pro | Free, Pro, Max |
| Categories | Research Tool, Summarizer | Research Tool, Chatbot |
| Last updated | July 8, 2026 | July 8, 2026 |
See all tools in these categories: Research Tool
NotebookLM or Perplexity AI?
NotebookLM (4.7/5) and Perplexity AI (4.6/5) earn very similar ratings from our community: the choice mostly comes down to your use case.
Budget-wise, both tools offer a free plan: you can try them before committing to a paid tier.
Positioning-wise, NotebookLM stands out in Summarizer, while Perplexity AI focuses on Chatbot.
Free
Plus
Pro
Free
Pro
Max
Prices are indicative and may change — check the official sites for up-to-date pricing.
Both tools share the Research Tool space, but NotebookLM also covers Summarizer, while Perplexity AI adds Chatbot.
The two tools are neck and neck: NotebookLM shows 4.7/5 (231 reviews) and Perplexity AI 4.6/5 (441 reviews).
Yes: both NotebookLM and Perplexity AI offer a free plan to get started. Advanced features require their paid tiers.