Side by side
NotebookLM vs Perplexity AI
NotebookLM
50 positive (86%) · 8 mixed (14%) · 0 negative (0%)
Trust + time weighted: +87%
AI summary — not a quote
NotebookLM is widely praised as a powerful research and study assistant that specializes in grounding AI responses within a user's own uploaded documents. It is particularly popular for its 'Audio Overview' feature, which converts dense text into conversational podcasts, and its ability to handle large volumes of source material—up to 50 sources with 500,000 words each in the free version.
Pros
- Highly effective 'Audio Overview' feature that transforms PDFs and notes into digestible podcasts.
- Strict grounding in provided sources, reducing hallucinations by sticking to the uploaded data.
- Generous capacity for source material, supporting diverse formats like PDFs, Google Drive docs, and YouTube videos.
- Excellent for exam preparation and technical certifications, such as CISSP and Azure.
Cons
- Users report 'model drift' in long chat sessions where the AI may rewrite or lose track of small details from earlier steps.
- Can feel restrictive for tasks requiring general web knowledge, as it is designed to prioritize provided resources.
- Workflow friction when used alongside other tools, often requiring manual copying and pasting of links or answers.
Top excerpts
I gave NotebookLM a try when digesting the study material and putting it into a podcast format to listen to, the last month before going in.
Also, it sounds like one of those podcasts automatically generated by something like notebookLM
NotebookLM — underrated. Loaded the study guide in and generated architecture diagrams for the topics I couldn't hold in my head from text, plus slide decks for revision.
I used NotebookLM to build mindmaps of what I was about to study, generate flashcards, and sometimes quizzes
So long story short notebookLM has been a game changer and has helped me get good grades and save tons of time
Perplexity AI
48 positive (66%) · 19 mixed (26%) · 6 negative (8%)
Trust + time weighted: +61%
AI summary — not a quote
Perplexity AI is frequently described as a "research powerhouse" that functions as a hybrid between a search engine and a large language model. Users value its ability to provide cited summaries, data visualizations, and niche news discovery, often using it to replace traditional Google searches. While highly regarded for academic and professional research, it is commonly used as part of a multi-AI workflow alongside tools like ChatGPT and Claude rather than as a total replacement.
Pros
- Excellent for deep research, providing cited sources and structured summaries.
- Offers data visualizations, charts, and graphs that many other LLMs lack.
- Effective for exam preparation and generating practice questions for certifications like CISSP and Azure.
- Includes a 'Spaces' feature for organizing research by specific topics.
Cons
- Susceptible to system prompt leakage through specific language-based bypasses.
- Users report occasional inaccuracies, sometimes requiring 'arguments' with the AI to reach the correct answer.
- Some users find it less effective for live data grounding compared to competitors like ChatGPT.
Top excerpts
Perplexity has spaces.
Wow. I copy/pasted your prompt into Perplexity and the assessment it gave of me made so much sense... Its understanding of "me" is spot-on. I got back pages and pages of how I like to communicate, how it should communicate with me... And all of it says a lot about who I am as a person.
Perplexity is good for this kind of stuff I think. That’s the only use case of that model
Pro Tip: For bleeding-edge sectors, run this prompt in a model with active web search enabled (such as ChatGPT Search, Perplexity, or Gemini) so the chronological citations are pulled from live data.
to solve this paste this into chatgpt, claude, perplexity, gemini, notebooklm or any ai you use: "Test my genuine knowledge of [TOPIC] in [SUBJECT] using the Minimum Viable Clue protocol.