NotebookLM is now Gemini Notebook, with 3.5 + Antigravity upgrade coming to AI Pro Google rebranded NotebookLM as Gemini Notebook and announced that the Gemini 3.5 and Antigravity upgrade will soon roll out to AI Pro subscribers, bringing secure cloud computing for code execution and complex data analysis. The research tool, now used by over 30 million people and 600,000 organizations, will also integrate deeper into the Google ecosystem, including Search's AI Mode. Google announced today that NotebookLM https://notebooklm.google.com/ is now called “Gemini Notebook” and previewed upcoming features that users can soon expect. At I/O 2023, the research tool was unveiled as Project Tailwind https://9to5google.com/2023/05/10/google-project-tailwind-ai-notebook/ and then became NotebookLM https://9to5google.com/2023/06/16/google-project-tailwind-name/ closer to launch. Gemini Notebook is much friendlier than having “language model” in the name, while Google is explicitly tying the app to the main Gemini brand. The current logo will be updated with a blue/purple Gemini gradient. Gemini Notebook remains a “standalone product focused on being your premier research tool,” but will now “do more across the Google ecosystem.” Notebooks are already available https://9to5google.com/2026/04/08/gemini-app-notebooks/ in the Gemini app for chat organization and collecting work. They will soon be available in Google Search’s AI Mode. The other announcement today is that the Gemini 3.5 and Antigravity upgrade https://9to5google.com/2026/06/08/notebooklm-gemini-3-5-antigravity/ that began rolling out for AI Ultra users last month is soon coming to AI Pro subscribers. Each notebook gets a secure cloud computer to natively write and execute code in service of “complex data analysis grounded in your sources.” Google touts “entirely new output formats and deeper analysis.” This upgrade will be available to all Google AI Pro users on the web “over the coming weeks.” Google also shared today that Gemini Notebook is now used by over 30 million people and 600,000+ organizations. FTC: We use income earning auto affiliate links. More. https://9to5mac.com/about/ affiliate our homepage http://9to5google.com/ for all the latest news, and follow 9to5Google on exclusive stories https://9to5google.com/feature/exclusive/ , reviews https://9to5google.com/guides/reviews/ , how-tos https://9to5google.com/guides/how-to/ , and subscribe to our YouTube channel https://www.youtube.com/9to5google