Eightify vs NotebookLM (2026): Which Is Better for YouTube & Video Summaries?
We compare YouTube-focused Eightify with Google's NotebookLM, which summarizes and answers questions with citations. Ease of use, summary accuracy, source grounding, supported inputs, and pricing—so you can pick the right one.
Verdict:Eightify is ideal for the 'summarize this YouTube video right now' need. One click on the video page surfaces key points and a timestamped outline, making it far faster to triage long videos. NotebookLM, by contrast, lets you collect multiple PDFs, texts, and videos as sources and summarize or answer questions with citations. Because it shows the grounding, hallucinations are easier to catch, making it great for research and reading. For convenience and YouTube focus, Eightify; for grounded research across many sources, NotebookLM. They're less rivals than tools for different jobs. Either way, treat summaries as prep, and verify the original video or document before important decisions.
Table of Contents
Eightify & NotebookLM Overview
Eightify
A browser extension specialized in summarizing YouTube videos. One click on the video page produces key points and a timestamped outline; multilingual. Best for anyone who wants to summarize YouTube fast.
Learn more about Eightify →NotebookLM
Google's tool that treats uploaded documents, PDFs, and videos as sources and summarizes or answers with citations. Showing the grounding makes hallucinations easier to catch; it also generates audio overviews.
Learn more about NotebookLM →Feature & Pricing Comparison
| Feature | Eightify | NotebookLM |
|---|---|---|
| Strength | Excellent (YouTube summaries) | Excellent (cross-source summary & QA) |
| Ease of use | Excellent (one-click extension) | Good (requires uploading sources) |
| Source grounding | Good (timestamps) | Excellent (cites the source) |
| Supported inputs | Limited (mainly YouTube) | Excellent (PDF, text, video, etc.) |
| Q&A (chat) | Good (partial) | Excellent (answers from sources) |
| Pricing | Free tier + paid (a few $/mo) | Free (Google account) |
| Best for | Summarizing YouTube instantly | Researching multiple sources with grounding |
Our Verdict
Our Verdict
Eightify is ideal for the 'summarize this YouTube video right now' need. One click on the video page surfaces key points and a timestamped outline, making it far faster to triage long videos. NotebookLM, by contrast, lets you collect multiple PDFs, texts, and videos as sources and summarize or answer questions with citations. Because it shows the grounding, hallucinations are easier to catch, making it great for research and reading. For convenience and YouTube focus, Eightify; for grounded research across many sources, NotebookLM. They're less rivals than tools for different jobs. Either way, treat summaries as prep, and verify the original video or document before important decisions.
Recommendations by Use Case
Summarize a YouTube video right now
One-click extension surfaces key points and timestamps.
Research multiple sources with grounding
Summarizes and answers with citations from your sources.
Minimize hallucinations
It shows the passage a claim is grounded in.
Start free and easy
Free to use with a Google account.
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