The free quota is actually sufficient for general use (100 notes, 50 sources per note), and most people won't use it up - no need to rush into paying; however, note that the output of infographics and presentations has a watermark, according to the official pricing table, Watermark Removal is No for Free, Plus, and Pro, and only available for Ultra to remove.
They also argued about these things on another page.
2026-09-21Daily auto-check logged — see the Chinese version for details
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2026-08-14Re-checked by a local Claude parallel subagent (notebook.google.com — notebooklm.google.com now redirects, brand renamed to Gemini Notebook; Pro/Ultra pricing matches the site's existing note, no change)
2026-08-09The product has been renamed to Gemini Notebook. The Ultra 20x storage space description has been corrected to 20TB/30TB in two tiers. The free_details.watermark has been changed from false to true (according to the official usage table Watermark Removal: No for Free/Plus/Pro). Source: https://support.google.com/notebooklm/answer/16213268?hl=en
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2026-07-25The official website (one.google.com/about/plans) adds the basic Google AI Plus plan (US$9.99/month) for NotebookLM expansion; the original US$20 plan is adjusted to Google AI Pro for US$19.99/month; there is also a higher-end new plan, Google AI Ultra (US$249.99/month, according to a third-party news source); the free version remains permanently free.
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Continuously re-checked, every fact dated
Has a free plan
What Is This
Feed data to generate summaries/podcasts; godsend for students and researchers.
Free Version Limitations
The free version is sufficient and permanently free, with limits on the number of sources or notebooks, and does not require subscription or credit card.
Available Models And Quantity
Model
Free quota
Calculate Time Window
Description
Gemini (version determined by Google)
50 conversation queries per day
Every day
The free version does not allow model selection
Free Usage Limit
Features
Free quota
Description
Number of Notebooks
100 books
Number of sources that can be added per book
50 items
PDF, web pages, YouTube videos, Google documents are all included
Daily conversation limit
50 times
The first limitation encountered in the free version
Generate Podcast audio summary
Available
It can be used in the free version, which is one of its most popular features
Includes NotebookLM with a higher quota (400GB storage space), the newly added lowest-tier paid plan; 2026-07-30 correction: The previous note incorrectly stated "2TB", which is actually the capacity of another same-named US$9.99 SKU on one.google.com/about/plans, and is different from the US$4.99/gemini.google version (400GB) in this column, see the notes below for an explanation of the coexistence of the two SKUs.
Best for: Graduate students, those who need to handle a large number of documents at the same time
US$19.99 / mo
Includes NotebookLM with higher quota (5TB storage space); original price was US$20, now US$19.99 on the official website
Which Model
Gemini (upgraded with Google AI Pro plan)
Usage Quota
Notebooks 100→500, sources per notebook 50→300, daily conversations 50→500 times
Max Reading Time
The amount of data that can be handled has increased significantly
This Plan Includes
500 notebooks
300 sources per book
500 conversations per day
Comes with Google AI Pro subscription
Not Included
Ultra plan's 500-600 source limit
What Sets Us Apart
This is not a standalone plan, but an add-on that comes with a subscription to Google AI Pro (US$20/month). If you were already planning to subscribe to Gemini, it's essentially a free upgrade.
Corrected to US$249.99 with a two-tier structure (check directly on the official website gemini.google/subscriptions); includes NotebookLM with the maximum limit (20TB storage space), which is 5 times the usage of Pro
It has been revised from a single US$249.99 to a two-tier structure (confirmed directly on the official website gemini.google/subscriptions); includes the highest Quota for Gemini Notebook; Ultra is divided into two plans: 20TB and 30TB, with US$199.99 corresponding to the 30TB plan (the official usage table lists Ultra 20TB Plan and Ultra 30TB Plan), which is 20 times the usage of Pro. This plan is not listed on the one.google.com/about/plans page.
Japanese-style AI search, excellent localization for Traditional Chinese, and generous free quota
FreeThe free version has unlimited basic search, and approximately 5 Pro searches per day (200 points per day, resets at midnight), as well as a daily quota of 3 file analyses (confirmed on the official website on 2026-07-30); the paid Pro plan, after using up 15,000 points per period, can still enjoy up to 300 Pro searches per day (confirmed on 2026-07-26: the latest blog post on the official website states 300 times, while the FAQ page states 100 times, which is outdated and not updated).
Support on mobile devices (iOS/App/tablet) still needs to be verified case by case; currently only the web version is listed. NotebookLM itself has no standalone paid plan and requires a Google AI subscription (Plus/Pro/Ultra) or a Google Workspace Business‑or‑higher plan to obtain advanced quotas. 2026-07-26 verification correction: the previously recorded single Ultra US$249.99 does not actually exist; the official site gemini.google/subscriptions confirms a two‑tier Ultra offering of 5x (US$99.99) and 20x (US$199.99), consistent with the gemini/nano-banana entry. / 2026-08-09: Google has renamed NotebookLM to Gemini Notebook (the website title is Gemini Notebook | AI Research Tool & Thinking Partner, and the official help center title is Gemini Notebook Help).
Related Comparison Alternatives
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Looking for Gemini Notebook deals, discounts or promo codes? We check the official site automatically every day, review changes by hand, and date-stamp every entry.
