NotebookLM's new study features cost $0 and outperform apps people pay $15 a month for

NotebookLM has added four study-focused features for the start of the new academic year, and Google says they’re rolling out across different plans and platforms. The updates include Interactive Learning Overviews and improved quizzes, both available to all users without a paid Google AI plan. Short Video Overviews also work on the free tier, though usage limits are lower. Voice Chat is more restricted: it’s set to roll out first to Google AI Ultra subscribers, then to Google AI Pro users and others later. Google also brought back its free Google AI Pro student offer mentioned from last year. Availability may vary by account and device.