ChatPDF
ChatGPT
Perplexity.ai
Obsidian
Claude AI
Humata AI
elicit
AI-first notebook by Google, available in the U.S., blends large language models and user-chosen data. Apply for access to explore intelligent insights and enhance your note-taking experience.

LeetCode
The bug you can't spot today ships tomorrow. Train before the incident: one realistic AI pull request a day, graded against a canonical review. Free, no signup.

Which is more popular?
Based on our record, NotebookLM seems to be more popular. It has been mentioned 10 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
NLM
NotebookLM
|
|
|
|---|---|---|
| Website | notebook.google.com | diffdojo.com |
| Listed in |
What each product offers, as listed by its team.

Possible disadvantages
An editorial look at what each product does well and who it suits.

Overall verdict
Why this product is good
Recommended for
No analysis of DiffDojo yet.
Walkthroughs and reviews on video.
Google made a new AI note app - NotebookLM review
More videos
No DiffDojo videos yet. You could help us improve this page by suggesting one.
How often each product is chosen within a category, 0–100% relative to the other.

Share your experience with using NotebookLM and DiffDojo. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.

Gemini Notebook only generates content based on your sources and will not hallucinate or provide false or unrelated information. I cannot overemphasize the importance of this platform while following through with this certification... - Source: dev.to / about 1 month ago
You just need a few summaries occasionally. Standing up Ollama, a model, and an extraction pipeline to summarize five PDFs is overkill. If privacy isn't the constraint, a free web tool does it in seconds — ChatPDF and NotebookLM if you... - Source: dev.to / 2 months ago
Last year I was heavily into Perplexity but for most of 2026 I've actually been using NotebookLM a lot more. Perplexity is still useful for just daily news, but when I want to research, when I want to summarise, when I want to learn...... - Source: dev.to / 4 months ago
Tracking DiffDojo since Sep 2026.
When comparing NotebookLM and DiffDojo, you can also consider the following products.

Chat with any PDF! Join millions of students, researchers and professionals to instantly answer questions and understand research with AI
Compare ChatPDF to NotebookLM or DiffDojo:

Practice and level up your development skills and prepare for technical interviews.
Compare LeetCode to NotebookLM or DiffDojo:

ChatGPT is a powerful, open-source language model.
Compare ChatGPT to NotebookLM or DiffDojo:


A second brain, for you, forever. Obsidian is a powerful knowledge base that works on top of a local folder of plain text Markdown files.
Compare Obsidian to NotebookLM or DiffDojo:

Claude is a next generation AI assistant built for work and trained to be safe, accurate, and secure. An AI assistant from Anthropic.
Compare Claude AI to NotebookLM or DiffDojo: