Google's NotebookLM now supports 80 new languages with its 'Video Summary' feature, which compiles videos with audio.

Google has announced that its AI information gathering tool, NotebookLM, now supports 80 languages, including Japanese, for its 'Video Summary' feature, which compiles the contents of notebooks into videos.

Google's NotebookLM updates Audio and Video Overviews

How to quickly summarize long YouTube videos with Google's free AI notebook 'NotebookLM' to make them understandable in a short time & how to generate audio podcasts that you can listen to while doing other things - GIGAZINE

Video Summary is a feature introduced in July 2025 that generates a video summarizing the contents of your notebook.

For example, the following shows the results of loading ' (PDF file) AI and Copyright ' and ' (PDF file) AI Utilization Guidelines: Practical Reference for AI Utilization, ' both published by the Copyright Division of the Ministry of Internal Affairs and Communications' Agency for Cultural Affairs, into NotebookLM. The 'Chat' section in the center contains a summary of the loaded document.

Select 'Output Language' from 'Settings' in the top right corner.

Select 'Japanese' and click 'Save.'

Click 'Video Explanation' under 'Studio' in the right column.

Then the video will be generated.

The generated video looks like this. However, Japanese support is not yet available at the time of writing, and the video content is all generated in English.


Support for 80 languages is expected to be available 'sometime this week,' meaning it will be implemented by August 2025.

GREAT NEWS for our multilingual users! Rolling out this week:

1) Video Overviews in all 80 supported languages
2) Short & Default length controls for non-English audio overviews– so you should start seeing longer AOs!

Because great ideas shouldn't get lost in translation ???? pic.twitter.com/gtCTrEMrTw

— NotebookLM (@NotebookLM) August 25, 2025