Perplexity vs NotebookLM
Which one should you choose? Here's how they compare.
| Feature | Perplexity | NotebookLM |
|---|---|---|
| Rating | ★ 4.4 | ★ 4.4 |
| Pricing | $20/mo | Free |
| Type | freemium | free |
| Company | Perplexity | |
| Founded | 2022 | 2024 |
Perplexity Features
- •AI search
- •Source citations
- •Follow-up questions
- •Collections
NotebookLM Features
- •Source-grounded AI
- •Audio overview
- •Document analysis
- •Podcast generation
Perplexity Pros
- ✓Shows sources
- ✓Good for research
- ✓Clean interface
Perplexity Cons
- ✗Can hallucinate sources
- ✗Limited free queries
- ✗Not always accurate
NotebookLM Pros
- ✓Grounded in your sources
- ✓No hallucinations
- ✓Great audio summaries
NotebookLM Cons
- ✗Source-dependent
- ✗Limited to uploaded content
- ✗No web search
The Verdict
Perplexity and NotebookLM are two of the most popular tools in the search category, but they take different approaches to solving the same problems. Perplexity, developed by Perplexity (founded 2022), is described as "ai-powered search engine that provides answers with sources.". Meanwhile, NotebookLM by Google (founded 2024) "google's ai research assistant that analyzes your documents and sources for grounded q&a.". Both tools share the same rating of 4.4/5.0, making this a genuinely close comparison. Your choice comes down to specific needs rather than overall quality. On the pricing front, NotebookLM offers a free model at Free, making it the more budget-friendly option for teams watching their spend. Neither tool is perfect: Perplexity's main drawbacks include can hallucinate sources, limited free queries, while NotebookLM users typically cite source-dependent as its biggest limitation. Both tools excel at research, so either choice will serve you well for these core use cases. However, Perplexity has an edge in fact-checking, which might be the tiebreaker if that's important to you. In terms of target audience, Perplexity is particularly popular among researchers and students, while NotebookLM tends to attract students and researchers. Our verdict: With identical ratings, you can't go wrong with either. Try both free versions and pick the one that clicks with your workflow.
- • You need shows sources
- • You need good for research
- • You need grounded in your sources
- • You need no hallucinations