BrainTube vs NotebookLM
Designed for video at scale.
NotebookLM — rebranded by Google as Gemini Notebook in 2026 — is a research notebook: you add sources to a notebook and chat with them, with paid access bundled into Google's AI plans rather than sold separately. BrainTube is a continuously-growing personal knowledge base: capture is automatic (Chrome extension, YouTube sync, RSS), and the corpus is exposed to every AI client you use over MCP, not just Google's notebook UI.
NotebookLM is excellent for synthesizing a small set of documents you upload for one project. BrainTube is built for video knowledge that grows continuously — hundreds of videos, automatic ingestion, and search that scales with your library.
BrainTube
- Save any YouTube video, article, or PDF with one click
- Chrome extension for in-context capture while you browse
- BrainToken allowance that scales with your plan — 300/mo on Starter up to 1,000/mo on Pro
- Knowledge Pods that span dozens of videos and articles
- Public Brains anyone can open and chat with at a shareable URL
- MCP-exposed library — every AI client reads the same corpus
NotebookLM
- Manual upload per source, one at a time
- Source and usage limits are tier-gated and undocumented — Google describes them only as more, expanded or higher access
- No native browser-level or YouTube-history capture
- Notebooks are per-project — there is no continuously growing library
- No MCP endpoint — the AI stays inside Google's notebook UI
- Paid access comes bundled in a Google AI plan, not sold standalone
When you want one growing knowledge base for everything you consume — accessible from every AI client, exportable, and shareable.
When you have a finite, well-defined research project (e.g. writing one paper, prepping for one investment thesis) with a fixed set of sources.
A real scenario
A grad student researching attention mechanisms uploads 40 papers to NotebookLM and chats with them for the thesis chapter — perfect fit. The same student also watches AI research talks on YouTube weekly, follows 30 ML blogs, and wants those queryable forever. NotebookLM is organised around discrete notebooks per project; BrainTube grows continuously, surfaces forgotten talks from 2 years back, and feeds the whole library into the student's Cursor / Claude workflow.
Pricing
Gemini Notebook (formerly NotebookLM) has a free tier. Paid access is bundled into Google's consumer AI plans rather than sold separately: Google AI Plus at $4.99/month, Google AI Pro at $19.99/month, and Google AI Ultra from $99.99/month — described by Google as more, expanded and higher access respectively. Google publishes no numeric source or query limits for any tier, so we don't quote one. Verified from one.google.com/about/google-ai-plans/ in July 2026. BrainTube is free for up to 30 captures a month, with paid plans from $9/month.
Verdict
Use NotebookLM for one-off research projects. Use BrainTube to build a permanent, growing knowledge base from everything you watch.
Frequently asked
- Is Gemini Notebook the same as NotebookLM?
- Yes. Google rebranded NotebookLM as Gemini Notebook — as of July 2026 both notebooklm.google and Google's own AI plans page use the Gemini Notebook name, and the old notebooklm.google URL still resolves. This page says NotebookLM throughout because that's still the name most people search for.
- Can BrainTube import a NotebookLM notebook?
- Partially — export your sources from NotebookLM and import the URLs into BrainTube. Native one-click import is on the roadmap.
- Does BrainTube do NotebookLM's audio overviews?
- Generated audio summaries (Audio Digest) are available on every plan, metered in BrainTokens. Not the headline feature — retrieval is.
- Which has better cited answers?
- Both cite sources. NotebookLM citations are within-notebook; BrainTube's are across your full library and survive across AI clients via MCP.
Try BrainTube free
No credit card required. The free tier includes 30 BrainTokens a month — BrainTokens cover saving items, running searches and asking your brain.
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