NotebookLM is now Gemini Notebook, with 3.5 + Antigravity upgrade coming to AI Pro

Google has officially rebranded NotebookLM as Gemini Notebook to reflect the tighter integration of the service into Gemini. This name change coincides with the preview of upcoming features for users. Additionally, Google AI Pro subscribers will receive a serious upgrade, expanding the capabilities that previously debuted on the Ultra tier last month. The transition ensures that the tool is now aligned with the broader Gemini ecosystem while providing enhanced functionality for its professional user base.