Is NotebookLM Still Free in 2026? Pricing Explained

If you’re typing “is NotebookLM free” into a search bar in 2026, the short answer is yes — Google’s AI research and note-taking tool still has a free tier, and it doesn’t require a subscription or a credit card to use. This guide walks through exactly what that free tier includes, what changes if you pay, and where the real limits sit, based on the current pricing data for the NotebookLM tool page.

So, Is NotebookLM Free?

Yes. NotebookLM’s free tier is designed to stay free indefinitely rather than functioning as a time-limited trial. You can sign in with a Google account and start uploading sources, generating summaries, and creating Audio Overviews without ever entering payment information. That’s a meaningful difference from tools that dangle a “free trial” before pushing you toward checkout — NotebookLM’s free plan is a permanent tier, not a countdown.

This is also why NotebookLM is often described as one of the more underrated free tools for students and researchers: the core functionality — feeding in documents and getting back summaries or audio-style discussions of the material — is available without paying anything.

What the Free Plan Actually Covers

The free tier is generous enough for typical use, but it isn’t unlimited. Google caps the number of sources you can add per notebook and the number of notebooks you can create on the free plan. The exact current numbers for those caps aren’t specified in the data verified for this article, so if you need the precise source-count or notebook-count ceiling, please check the official site directly, since Google has adjusted these limits before and could do so again.

What is confirmed is the billing side: no subscription and no credit card are required to use the free tier, and it’s intended to remain free rather than convert into a paid trial after a set period.

Paid Plans: What You Get for Money

NotebookLM itself doesn’t sell a standalone subscription. Instead, higher usage quotas come bundled into Google’s broader AI subscription tiers — Google AI Plus, Google AI Pro, and two tiers of Google AI Ultra. Here’s what each one costs and includes, based on the most recently verified pricing:

A couple of things worth flagging about these numbers. Google has, at times, listed a different price for a plan called “Google AI Plus” on different parts of its own site — one version at US$9.99/month tied to 2TB of storage, and another at US$4.99/month tied to 400GB, depending on whether you reach the plan through Gemini’s subscription page or Google One’s plans page. The pricing above reflects the US$4.99/400GB version, which is the figure most recently confirmed against Google’s official pages. If you’re comparing plans and see a different number for “Google AI Plus,” it’s worth double-checking which storage tier that price is actually attached to before you subscribe.

Similarly, Google AI Ultra used to be listed as a single US$249.99/month plan before Google restructured it into the two tiers shown above (5x and 20x). None of these plans are NotebookLM-specific purchases — you’re buying into Google’s general AI subscription, and the higher NotebookLM quota comes along with it, alongside benefits for other Google AI products.

Audio Overviews and Feature Quotas: What’s the Current Status?

Audio Overviews — the feature that turns your uploaded sources into a podcast-style discussion — is one of NotebookLM’s signature features, and it’s available on the free tier as well as all paid tiers. What isn’t available in the pricing data behind this article is a specific number for how many Audio Overviews you can generate per day or per month on the free tier versus each paid tier. Google’s plan descriptions refer to paid tiers unlocking a “higher usage quota” for NotebookLM overall, but without a documented per-feature number, the responsible answer is: please check the official site for the current Audio Overview generation limits before assuming a specific number applies to your account.

If Audio Overview capacity is the deciding factor in whether you upgrade, it’s worth testing the free tier’s actual daily limit yourself first, since quotas on AI features tend to shift as usage patterns and infrastructure costs change.

Bottom Line

NotebookLM is still free in 2026, with no credit card required, and that free tier is built to stay that way rather than expire. What you get with the free plan covers the core experience — document upload, AI summaries, and Audio Overviews — but with capped sources per notebook and a capped number of notebooks (exact figures: please check the official site). If you outgrow those caps, the path forward isn’t a NotebookLM-specific plan but one of Google’s AI subscriptions — Plus at US$4.99/month, Pro at US$19.99/month, or Ultra at US$99.99 or US$199.99/month — each of which adds more storage and a higher NotebookLM usage quota on top of benefits across Google’s other AI tools.

For the latest confirmed pricing details, see the NotebookLM tool page, which is checked against Google’s official pricing pages on an ongoing basis.

Pricing on this page was last verified on 2026-08-07 against Google’s official pricing pages. Google’s subscription pricing has changed multiple times over the past year, so figures — especially around the “Google AI Plus” naming overlap described above — are worth reconfirming on Google’s site before you subscribe.