What each tool does
Perplexity is an AI assistant for asking questions and exploring topics. It is widely known as an AI search tool, helping with research and everyday tasks. A free tier is available, and its site lists the current features and plans.
NotebookLM, now presented as Gemini Notebook, is Google's AI research assistant. You add your own sources, and it reads them to answer questions, explain difficult ideas and pull out key points. It can also reshape your material into new formats for easier review. It is free and runs in the browser.
Key differences
- Where answers come from: Perplexity answers questions broadly, while NotebookLM works from the sources you upload.
- Best use: Perplexity helps you discover information; NotebookLM helps you understand material you already have.
- Output: NotebookLM can turn your content into new formats for review.
- Pricing: Perplexity is freemium; NotebookLM is free to use.
- Audience: Perplexity suits curious everyday users and students; NotebookLM suits students, teachers and researchers.
Which should you choose?
Choose Perplexity if you are starting from scratch on a topic and want quick answers to general questions.
Choose NotebookLM if you already have lecture notes, reports or long documents and want AI to help you understand and review them. It is a strong fit for students and teachers in Pakistan, as it costs nothing and works in the browser.
Can you use both?
Yes, they complement each other well. Use Perplexity to find and learn about a topic, then collect your key documents in NotebookLM to study them in depth. Since NotebookLM is free and Perplexity has a free tier, you can try both without paying.
