What we checked, and what this page is not

On October 4, 2026 we loaded every Google surface that can quote a price for Gemini Notebook (the product renamed from NotebookLM) in a real browser session with an en-US locale, and saved a screenshot plus a text dump of each. No account was created and nothing was purchased — this is a terms-level pricing check, not a hands-on test. The standalone 2026-09-28 terms check that used to live at /saas/notebooklm-review/ was merged into this page on 2026-10-20 (one pricing intent, one URL).

Seven official pages went into this one: Gemini’s subscription page, the Google One storage ladder in both its monthly and annual views, the Google AI plans page and its comparison table, the Notebook plans page, the help-center plan article and the help-center usage-limits article. Every link is listed at the bottom.

Two things to know before the numbers: they are US-dollar figures captured on a single day — the same URLs localize, and an earlier fetch of the AI plans page came back in another language with the price fields blank, which is why we re-captured everything in a controlled en-US session before writing this — and Google is actively changing how Notebook billing works, so the daily caps quoted on many other sites no longer exist (section 4).

1. The short answer: there is no NotebookLM price

You cannot subscribe to Gemini Notebook. Every paid tier is a Google AI bundle, and the Notebook entitlement is a line item inside it. The ladder as printed on 2026-10-04:

Plan Monthly (USD) Gemini usage Storage included Gemini Notebook line on the page
Free / Standard $0 baseline 15 GB “Standard limits for chat and generation of Slides, Audio Overviews and other artifacts”
Google AI Plus $4.99 2× standard 400 GB “more Audio Overviews, notebooks, and more”
Google AI Pro $19.99 (annual $199.99) 4× standard 5 TB “5x more Audio Overviews, notebooks, and more”
Google AI Ultra (5×) $99.99 5× vs Pro 20 TB “Highest limits and best model capabilities”
Google AI Ultra (20×) $199.99 20× vs Pro 30 TB same “Highest limits” row

The usage multipliers and storage figures come from Gemini’s subscription page; the two Ultra storage columns (20 TB / 30 TB) come from the help-center plan table, which is also where the per-notebook source caps live.

2. The trap: one plan name, two prices

Google AI Plus costs $4.99/month. It also costs $9.99/month. Both numbers are printed by Google, in US dollars, on the same day:

  • Gemini’s subscription page and the Google AI plans page: Google AI Plus — $4.99/mo with 400 GB of storage.
  • The Google One storage ladder: Google AI Plus (2 TB) — $9.99/mo, with $99.99/yr in the annual view (“Save up to $19.89”).

The AI plans page’s own comparison table quietly concedes the ambiguity — its Storage row reads “400 GB or 2 TB” for Plus. Google AI Pro, by contrast, is consistent on every page we captured: $19.99/month, 5 TB, $199.99/year.

What to do with that: decide which page you would actually check out from, and read the storage figure printed on that card. The $4.99 tier is 400 GB; the $9.99 card on the Google One ladder carries 2 TB. The two pages never say these are the same product, so don’t assume it.

3. What the paid tiers add besides Notebook

Everything below is printed by Google on the AI plans page (2026-10-04):

  • Pro: YouTube Premium Lite (individual), Google Home Premium Standard (“$10/mo value”), Google Health Premium (“$9.99/mo value”), and $10 per month in Google Cloud credits.
  • Ultra (either SKU): YouTube Premium individual, Google Home Premium Advanced (“$20/mo value” — Pro can upgrade to Advanced for $9.99/month), Health Premium, $40 per month in Google Cloud credits, plus Deep Think, Gemini Spark and Project Genie.
  • The page runs Google’s own savings calculator: with Pro selected it shows “$59/mo current separate services” against “Google AI Pro bundle $19.99/mo” and “Monthly savings $39”. That is Google’s arithmetic, not ours.

If you don’t want YouTube, the smart-home plan or cloud credits, you are paying for one thing: the Gemini usage multiplier and, with it, the Notebook limits.

4. The limits that actually cap you — and the per-day numbers that are stale

The correction that matters. On September 2, 2026 Google replaced fixed daily caps (the familiar “50 chats and 3 Audio Overviews a day” table) with compute-based usage limits. The help-center article states it plainly: limits “factor the complexity of your prompt, the models and features you use, the length of your chat and specific features”, and the quota “refreshes every 5 hours until you reach your weekly limit”.

The per-plan ceiling is now a verbal multiplier, not a table of counts:

Plan Limit
Without a plan Standard limits
AI Plus Two times higher than standard limits
AI Pro Four times higher than standard limits
AI Ultra 5x or 20x higher than AI Pro, depending on your subscription

In the product, the usage meter lives under Settings → Usage, and the chat footer shows a message like “You’re almost at your AI usage limit. Limit resets at 3:00 PM.” If you hit the ceiling, Google offers “Generate later”, which queues the artifact instead of failing — web only as of this capture.

The truly durable limits are still printed on the plan article, and those didn’t move:

Standard Plus Pro Ultra 20 TB Ultra 30 TB
Notebooks per user 100 200 500 500 500
Sources per notebook 50 100 300 500 600

Two findings from the captures worth flagging:

  1. The old per-day quota rows are gone from the plan article. They were present in our 2026-09-28 capture of that same URL (3/day Audio Overviews, 50/day chats, 10/month Deep Research) and are absent today — re-checked after scrolling the full page and expanding every collapsible control, so this is a content change, not a rendering artifact. Any page still quoting fixed daily counts as current is describing a model Google retired.
  2. Paid tiers are not watermark-free by default. The plan table’s Watermark Removal row is No / No / Yes / Yes / Yes — free and Plus cannot remove the visible watermark; Pro and both Ultra columns can, but residents of India, South Korea and Vietnam get a visible watermark regardless.

5. Student and enterprise routes

  • Students: the AI plans page leads with “Students get Google AI Pro free for 1 year … 5 TB of storage”. The footnotes add that verification runs through SheerID, the offer is valid up to four years, and it “may automatically renew at the standard monthly price once student status concludes”.
  • Enterprise: Google Cloud’s “Gemini Notebook for Enterprise” — also reachable through Gemini Enterprise Standard, Plus and Frontline — is listed at 5X or more notebook artifacts, a different ceiling from the consumer ladder.
  • Work/school accounts: a qualifying Google Workspace or Workspace for Education licence also raises Notebook access.

6. Annual vs monthly

The Google One ladder’s annual view prints: 100 GB $19.99/yr (save $3.89), Google AI Plus 2 TB $99.99/yr (save $19.89), Google AI Pro 5 TB $199.99/yr. The AI plans page shows Pro’s toggle as Monthly ($19.99) / Annual ($199.99). Those yearly prices work out to $8.33 and $16.67 per month — our arithmetic on the printed yearly figures, not a monthly rate Google displays.

7. What this page does not verify

  • No account, no payment: billing, taxes, cancellation and refunds are untested here.
  • Prices are one day’s US-dollar figures. The same pages localize, and a localized render of the AI plans page showed blank price fields — treat currency and even the storage entitlement as page-specific until you read the card you would pay from.
  • Generation quality, Audio Overview output in non-English notebooks, and whether the 5-hour quota refresh behaves as documented are outside this page’s scope; Google also labels limits “subject to change”.
  • Ultra’s annual availability: we saw monthly figures only.

8. Who should care about which rung (terms-level)

The rename is worth pinning down first: NotebookLM was renamed Gemini Notebook in July 2026 — Google’s plans-page FAQ says it verbatim (“NotebookLM is now Gemini Notebook as of July 2026. It is the same product you know and love”), and our redirect probe confirms the migration mechanically: notebooklm.google/plans answers 301 → notebook.google/plans. Articles still saying “NotebookLM pricing” are describing the same product under its old name.

  • Stay on Standard if you keep fewer than ~50 sources per notebook — the free tier’s 100 notebooks and 50 sources per notebook are unusually generous for a product you can’t buy standalone.
  • Plus at $4.99 is the first rung that doubles everything. As a pure NotebookLM decision it is the only tier whose price is plausibly worth it on limits alone (and see section 2: the same label prints $9.99 with 2 TB on the Google One ladder).
  • Pro/Ultra should be judged as Google AI bundles, not as NotebookLM upgrades — you are paying $19.99 or $99.99 for storage, Gemini model access and Flow, with 300–600 sources per notebook as a side effect. Notebooks plateau at 500 from Pro upward, so if your workflow is “many small notebooks” the Pro→Ultra jump buys you less than the marketing multiples suggest.

Sources (all captured 2026-10-04 in an en-US browser session): gemini.google/subscriptions · one.google.com/about/plans (monthly and annual views) · one.google.com/about/google-ai-plans/ (the AI plan ladder, bundle values and comparison table; /about/ai-premium/ redirects here) · notebook.google/plans (still prints zero prices) · support.google.com/gemininotebook/answer/16213268 (plan table) · support.google.com/gemininotebook/answer/17670842 (compute-based usage limits).