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NotebookLM Gemini 3.5 Major Upgrade Explained

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NotebookLM Gemini 3.5 Major Upgrade Explained

On June 8, 2026, NotebookLM integrated Gemini 3.5 and the Antigravity platform. This article breaks down the upgrade highlights, performance data, and new features.

Author：NotebookLM

NotebookLM Gemini 3.5 Major Upgrade: Source-Grounded AI Note-Taking Enters a New Era

On June 8, 2026, Google released the largest upgrade in NotebookLM’s history. This update not only integrates the Gemini 3.5 model but also introduces the Antigravity cloud programming platform, transforming NotebookLM from a “document Q&A tool” into a true AI research assistant.

Core Upgrade Highlights

Powered by the Gemini 3.5 Model

The upgraded NotebookLM achieves an average win rate of over 65% across five core evaluation dimensions, including:

  • Large document analysis: 69.9% win rate
  • Advanced web research and source discovery: 78.2% win rate

This means NotebookLM now significantly outperforms general-purpose AI chatbots when handling long papers, technical documents, and complex research tasks.

Antigravity Cloud Code Execution

Every notebook now comes with a secure cloud computer that supports:

  • Writing and running code such as Python
  • Over 100 built-in software skills
  • Data cleaning, statistical analysis, and visualization

For researchers and data analysts, this is like having a lightweight data analysis environment embedded directly in their note-taking tool.

Greatly Expanded Output Formats

NotebookLM now supports one-click export of:

  • PDF, Word, Excel, and PowerPoint reports
  • CSV and JSON structured data
  • PNG and SVG data visualization charts

Smart Source Discovery

Users can now start a project directly from a vague idea in the chat. NotebookLM uses Google Search to help discover and recommend high-quality sources, automatically building a library of materials—no need to prepare complete documents upfront.

Who Can Use It?

  • Free users: Continue using basic features
  • AI Ultra subscribers: Unlock Gemini 3.5 and cloud code execution
  • Google Workspace enterprise customers: Get enterprise-grade extended capabilities

Summary

The Gemini 3.5 upgrade further widens NotebookLM’s lead over general-purpose AI in the source-grounded AI space. If you haven’t tried it yet, we recommend visiting the NotebookLM App to create your first notebook today.

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