NotebookLM's Gemini 3.5 upgrade adds a cloud computer and help finding sources

Google just gave NotebookLM a serious upgrade. The AI note-taking app now runs on Gemini 3.5, which Google says delivers more accurate and reliable responses when you're working with your materials.

The bigger shift is how you can start projects now. Instead of needing to upload documents or YouTube videos first, you can jump straight in with questions about a topic. NotebookLM will use Google Search to find relevant sources for you, then help you work with what it finds.

This builds on the app's existing discover feature, but it's a fundamental change in workflow. You're no longer just chatting with documents you already have. You're using AI to bootstrap the entire research process from scratch.

For anyone doing research-heavy work, this could collapse the usual cycle of searching, saving sources, then analyzing them into a single conversation. The question is whether NotebookLM's source selection matches what you'd find yourself, or if you'll still need to curate manually.

NotebookLM launched in 2023 as Google's experiment in AI-powered note-taking. The core idea was always about having conversations with your sources rather than just storing them. Now it's trying to find those sources for you too.