Updated 28 September 2026.: Yes — Gemini Notebook (formerly NotebookLM) is free. But the answer needs more nuance in 2026, because paid Google AI plans now raise the limits and, since 2 September 2026, usage is measured by compute rather than by fixed daily counts, which can surprise heavy users. Here is the complete breakdown.
Gemini Notebook Free Tier
The free tier requires a Google account. Sign in at notebook.google.com and you're in. Here is what you get:
100 notebooks per account: . More than enough for almost everyone — each notebook is a self-contained research workspace.
50 sources per notebook: . This is the documented ceiling on the standard service. A tightly scoped literature review fits comfortably in one notebook; a sprawling one is better split across several.
Each source supports up to 500,000 words: (200 MB for PDFs, 200 MB for audio files). That covers most academic papers, even long ones.
Compute-based usage limits: . Since 2 September 2026 there is no fixed number of daily chat questions. How much each request uses depends on how complex your prompt is, how long the chat is and which features you use, and your quota refreshes every 5 hours up to a weekly limit. This is enough for most users, but heavy researchers can run out on a deep-dive day. Google publishes the current details on its usage limits help page.
Audio Overviews on the free tier: . The flagship feature is available on the free tier. Studio outputs such as Audio and Video Overviews use more of your quota than a chat reply.
Source types supported on free: PDF, .txt, Markdown, Google Docs, Google Slides, web URLs, YouTube videos, audio files, pasted text.
Paid Plans: Google AI Plus, Pro and Ultra
NotebookLM Plus is no longer sold as a separate plan. It is now part of Google AI Pro (formerly Google One AI Premium, $19.99/month in the US, regional pricing applies), and Google raises Gemini Notebook limits through three Google AI plans: Google AI Plus, Google AI Pro and Google AI Ultra. Qualifying Google Workspace and Workspace for Education editions raise them too. Here is what you get on top of free:
Higher ceilings across the board: Google AI Plus allows 200 notebooks and 100 sources per notebook, Google AI Pro 500 notebooks and 300 sources per notebook, and Google AI Ultra 500 notebooks and 500 or 600 sources per notebook. Usage limits scale too: Google AI Plus gets 2× the standard limit, Google AI Pro 4×, and Google AI Ultra 5× or 20× the Google AI Pro limit depending on the subscription. Google adjusts these numbers periodically and they vary by plan and region, so check Google's upgrade page for the figures that apply to your account rather than trusting a number quoted in a blog post.
Customization features: choose the tone, source emphasis, and length of Audio Overviews and chat responses.
Premium chat models: access to more capable underlying Gemini models for tougher questions.
Sharing and team notebooks: shared notebooks with view or edit access for collaborators.
Analytics: see how a shared notebook is being used.
What is NOT in Gemini Notebook (Free or Paid)
No native export to Markdown / PDF / Word: . You can copy text but not export the whole notebook cleanly.
No native one-click capture from ChatGPT, Claude, Gemini, YouTube, Reddit, LinkedIn: . This is the gap that Gemini Notebook Toolkit fills.
No real-time web search: . Gemini Notebook only works with sources you upload.
No public consumer API.: A Gemini Notebook Enterprise API is in Preview for Google Cloud customers only.
Free vs Paid: Which Should You Choose?
Stick with Free if
- You use Gemini Notebook occasionally for research projects
- 50 sources per notebook is enough for you
- You don't need shared/team notebooks
- The standard quota, which refreshes every 5 hours, handles your workload
Upgrade to a paid Google AI plan if
- You're doing heavy literature reviews that outgrow a single notebook
- You share notebooks with a team
- You regularly run out of quota before the 5-hour refresh or hit the weekly limit
- You want premium Gemini models for harder questions
- You're already paying for Google AI Pro (formerly Google One AI Premium) for the Gemini app
How Gemini Notebook Pricing Compares
| Tool | Free Tier | Paid Tier |
|---|---|---|
| Gemini Notebook | 50 sources/notebook, compute-based usage limits | $19.99/mo (with Google AI Pro) |
| ChatGPT | Limited GPT-3.5, basic features | $20/mo (Plus) |
| Perplexity | Limited Pro searches | $20/mo (Pro) |
| Claude | Limited messages | $20/mo (Pro) |
At the same $20 price point, Google AI Pro (which now includes the former NotebookLM Plus) offers the most for source-grounded research workflows.
Getting the Most From the Free Tier
If you want to stay on free, here are the highest-leverage habits:
- 1Curate sources tightly. 15 great sources will produce better answers than 50 mediocre ones, and a focused notebook makes your quota go further.
- 2Use Gemini Notebook Toolkit to capture sources efficiently. The free tier of Gemini Notebook Toolkit covers most workflows.
- 3Plan your questions. Decide what you need before opening Gemini Notebook, ask specific questions, and start a new chat when you change topic, because long threads use more of your quota.
- 4Audio Overviews are your superpower — generate one for each notebook once your sources are final and listen on the go.
Bottom Line
Gemini Notebook Free is one of the best free AI products of 2026. A paid Google AI plan is a worthwhile upgrade for heavy users, and if you already pay for Google AI Pro (formerly Google One AI Premium), the higher limits are already included. Either way, pair it with Gemini Notebook Toolkit to fix the source ingestion gap and you have a research system that punches well above its weight.