NotebookLM rolling out big Gemini 3.5 & Antigravity upgrade with more outputs

Google is giving NotebookLM a big upgrade today across the underlying models, outputs, and research made possible by Gemini 3.5 and Antigravity.

NotebookLM now uses Gemini 3.5 and Antigravity — Google’s coding tool — to provide “even more accurate and reliable information along with better visibility into the thinking process.”

Each notebook now has a “secure cloud computer” that lets NotebookLM “write and run code useful for helping you perform deeper research and more complex analysis.”

This results in big upgrades compared to the prior system, according to side-by-side evaluations:

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NotebookLM can now create outputs that are ready to download in more file formats:

You can provide detailed instructions, like creating PDF reports with charts and tables or detailed budget spreadsheets. After generation, you can request edits. More formats are coming in the future.

NotebookLM’s chat experience can now “guide you through building your source repository” if you’re starting a project with just “loose ideas and questions.”

Taken together, Google touts more workflows made possible in NotebookLM by these three core upgrades:

These upgrades are rolling out starting today for Google AI Ultra and Workspace business customers with AI Ultra access. This will come to other tiers “over time.”