The best way to do deep research in 2025 is:
- Use Gemini Deep Research to gather materials and get a brief overview.
- Export all sources it found to NotebookLM.
- Use NotebookLM's Q&A, video overview, podcast, etc to understand the sources.
- Use NotebookLM's "Save to Note" in chat and "Convert to Source" feature to gather more information and context
- Create articles/deck/report using NotebookLM's studio mode
Gemini is good at finding resources but sucks at Q&A afterwards. NotebookLM sucks at wide research but excels in everything else. So it's natural to combine the two and it's easily 1+1>2