Google NotebookLM Gets a Game-Changing Upgrade Along with Gemini 3.1 Pro

If you have been using Google NotebookLM to turn your research into slide decks, you know the struggle: if one slide didn't look right, you had to re-generate the entire presentation from scratch.

That limitation is officially a thing of the past. As of February 20, 2026, Google has rolled out a suite of powerful updates, headlined by Prompt-Based Slide Revisions and the integration of Gemini 3.1 Pro.

The Star of the Show: Prompt-Based Slide Revisions

NotebookLM’s slide generation just got a whole lot smarter. Instead of a take it or leave it approach, you can now fine-tune your presentations slide-by-slide using simple text commands.

• How it works: Open your generated deck in the Studio panel and click the pencil icon next to the title. A new interface will appear with a prompt box
• What you can do: You can instruct the AI to change the text, swap out colors, update visuals, or even adjust the entire tone all through a quick prompt.
• Generate with Precision: Once you’ve made your individual edits, simply hit Generate new deck to finalize your masterpiece.

Gemini 3.1 Pro: More Brainpower for Research

Alongside these UI improvements, NotebookLM is now powered by Gemini 3.1 Pro for Google AI Pro and Ultra subscribers. This model brings a massive boost to core reasoning, making the AI much better at connecting complex dots between your sources. Whether you are synthesizing scientific papers or building a business pitch, the insights are now deeper and more accurate.

New Export Options & Mobile Features

Google is also breaking NotebookLM out of its closed system with better export tools:

• PPTX Support: You can now export your slides in the Microsoft PowerPoint (.pptx) format, making it easy to finish your design in traditional presentation software. Note: Direct Google Slides integration is coming soon!
• Mobile Customization: The NotebookLM app on Android and iOS now allows you to customize Video Overviews, giving you more control over your visual recaps while on the go.
• Chat Suggestions: To keep your research moving, NotebookLM will now surface suggested questions in your chat, which evolve based on your ongoing conversation.

NotebookLM now lets you refine every slide with simple prompts and export your work directly to PowerPoint. With the added brainpower of Gemini 3.1 Pro, your research-to-presentation workflow just became faster and more precise than ever.