NotebookLM is Constantly Improving its Features
From Michael Spencer and Alex McFarland from AI Supremacy
What’s new in the AI world that I’m watching? Trending AI Tools.

Hey, I hope you had a good summer. I get so many questions and comments about our NotebookLM guides. So I wanted to double back today on some of their new features.
In the AI News
First some things I’ve noticed in the news cycle around AI:
- Anthropic has raised a stunning $13 Billion F Round and has 7x revenue during the last year. Read their blog.
- NotebookLM evolves with Video Overviews and More Languages.
- OpenAI does yet another $Billion dollar acquisition, this time of Statsig , a A/B testing, software experimentation company that helps organizations test features and leverage real-time data in their operations with a legendary founder.
- Alibaba is developing a new AI chip that is more versatile than its older chips and is meant to serve a broader range of AI inference tasks said the WSJ on Friday.
- About a week ago, Google released “Nano Banana”, that is their SOTA image generation model Gemini 2.5 Flash Image.
- Nvidia’s stock price: I did a deep dive into Nvidia’s Earnings which gave me a lot to think about. $NVDA . (note that Nvidia’s stock is down from its all-time highs, I’m expecting this to be the 5th consecutive down day).
- a16z released their 5th edition of their Top Generative AI Consumer Apps. It looks stunningly different yet again: (if you compare it with the previous time).

The Google Gemini app really has jumped into more relevance by Autumn, 2025 and so I thought it might be a good time to share Alex McFarland’s NotebookLM guide. He’s one of the AI creators who mentions NotebookLM the most on his Newsletter of anybody I know.
- How to create educational videos from your existing content in 10 minutes
- Using NotebookLM as a content multiplier
- The context engineering learning hub (NotebookLM)
Like every AI tool you are really into or consider using, I also advise you to also browse the NotebookLM Reddit and see what real people are saying.
NotebookLM Upgrades
So in recent months NotebookLM keeps evolving. Here are some of the new features that stand out to me:
Video Overviews
- NotebookLM now supports Video Overviews, which create narrated slide presentations from uploaded sources, offering a visual alternative to Audio Overviews.
- Interface updates, with a new enhanced studio panel. The Studio panelhas been redesigned to allow users to create and store multiple outputs of the same type (e.g., Audio Overviews, Video Overviews, Mind Maps, Reports) within a single notebook.
- NotebookLM introduced new formats for Audio Overviews, including: DeepDive, Brief, Critique and Debate types.
- Users can now customize Audio Overviews by selecting preferred languages, adjusting length, and adding guiding prompts with much faster buffering times.
- NotebookLM Audio Overviews are now available in over 50 languages.
- As of March 19th, NBlm has these new interactive Mind Maps feature that allows users to navigate complex topics by visually mapping connections between concepts. Genspark had this earlier but it’s still a nice to have feature for some research and professional use cases.
- As of April 2nd the popular Discover Sources feature was born: The “Discover sources” feature enables users to find related web sources based on their research topic, which can then be added to notebooks for more comprehensive analysis.
Whether you are a student, professional or tinkerer, one of my favorite things about NotebookLM is all the different use cases of how people use the AI tool.
Is NotebookLM Plus Worth it?
- NotebookLM Plus is a paid subscription, available as part of the Google One AI Premium package. You can upgrade NotebookLM to get additional capabilities, including higher limits and more features through Google AI Pro.
- You get some advanced features, customization and collaboration capabilities and more control overall, including enhanced security and privacy. In essence, Google advises that NotebookLM Plus is designed for users who need a more robust and collaborative AI tool for research, content management, and knowledge synthesis.
- It’s bundled: NotebookLM Plus is not sold as a standalone product. Instead, it is included as part of Google’s broader AI subscription plans. The most common way for individual users to get NotebookLM Plus is by subscribing to the Google One AI Premium plan.
- Google AI Pro has the following benefits (NotebookLM Pro is one of them).
Get Google AI Pro

NotebookLM is Constantly Improving its Features
Your essential updated guide on its best new research & content tricks.
A while back, I wrote a guide on NotebookLM for Michael Spencer’s ‘AI Supremacy’ that became one of his most popular posts ever. Given the significant evolution of NotebookLM, with a host of powerful new features, Michael asked for a sequel. The changes are so impactful for professionals that a comprehensive update is essential.
At AI Disruptor, I focus on practical AI implementation for measurable outcomes. This isn’t just about knowing what a tool can do, but how you can integrate it into your workflows to save time, enhance your research, and produce better content. This updated guide to NotebookLM is designed with exactly that in mind.
Let’s dive into how NotebookLM has been reimagined and what it means for your professional toolkit.
Why these updates matter to you
Remember the core promise of NotebookLM? A personalized AI research assistant grounded in your documents. That promise hasn’t just been kept; it’s been massively amplified. The original guide on AI Supremacy (you can revisit it here for context) highlighted its power for knowledge synthesis. Today, NotebookLM is even more robust, intuitive, and versatile.
For writers, content creators, researchers, and business leaders, these new capabilities can fundamentally streamline your processes and unlock new levels of productivity.
Everything new inside NotebookLM
NotebookLM has rolled out a suite of enhancements since our last piece. Here’s what you need to know:
NotebookLM Plus expanded its source capacity
The first thing seasoned users will appreciate is the increased capacity. Google launched a paid NotebookLM Plus plan that enables you to work with up to 300 sources per notebook (that’s approximately 150 million words!), a significant jump from the usual 50. This allows for much larger and more complex research projects.
For more on this story go to: AI SUPREMACY





