At Google I/O 2025, the tech giant unveiled new capabilities coming to NotebookLM, its AI-based note-taking and research assistant. Most notably, the company is launching Video Overviews.
Google says users will soon be able to turn dense multimedia, such as raw notes, PDFs, and images, into digestible visual presentations.
Since its launch, NotebookLM has been about helping users understand and interact with complex documents. With this new capability, NotebookLM will be taking a more visual approach to helping users understand different topics and ideas.
NotebookLM has already taken an audio approach to helping users understand materials with Audio Overviews, a feature that gives users the ability to generate a podcast with AI virtual hosts based on documents they have shared with NotebookLM, such as course readings or legal briefs.
Now Google is rolling out more flexibility to Audio Overviews, as it’s letting users select the ideal length for their audio summaries. For example, you can choose to have an Audio Overview at the default length, or longer or shorter.
The new features announced today come a day after Google officially released NotebookLM apps for Android and iOS. Up until now, NotebookLM has only been accessible via desktop. Google has now made the service available on the go.
The apps feature background playback and offline support for Audio Overviews, along with support for dark mode. The apps also allow people to create new notebooks and view the ones they’ve already created. Plus, when you’re viewing a website, PDF, or YouTube video on your device, you can tap the share icon and select NotebookLM to add it as a new source. Users can also view sources that they have already uploaded in each of the notebooks.