NotebookLM Rebrands as Gemini Notebook With New Mobile Builds and Gemini 3.5
NotebookLM has been rebranded as Gemini Notebook, with new mobile builds and updates tied to Gemini 3.5 in October 2026. The article explains how founders can use the tool for research, customer discovery, grant applications, and investor preparation. It also covers pricing, data safety, limitations, and common usage mistakes.
Google's July 16, 2026 name change moved NotebookLM under the Gemini brand, while users kept access to their prior notebooks. The October mobile releases—Android 1.60.8 on October 1 and iOS 1.60.7 on October 2—both use Gemini 3.5.
The free service allows 100 notebooks, each holding up to 50 sources and roughly 500,000 words. It can draw answers from PDFs, Docs, web links, and YouTube videos, attaching citations. Paid business options are listed around $14 and $20 per user monthly. Founders use it for research, customer discovery, grant applications, and investor preparation.
Tools like Gemini Notebook could affect founders, small teams, researchers, and students by making document-based research faster and more traceable. Because answers are tied to uploaded sources, users may gain efficiency, but they could also overtrust citations or overlook source quality. Broader adoption may shift expectations around cited AI research and data handling, especially for confidential business material.