Google's 'AI grounded in your own sources.' It answers only from your uploaded documents, and its Audio Overview (podcast) feature made it a sensation.
Pricing
- FreeFree
Free with caps on notebooks and sources.
- Pro 版With Google AI Pro $19.99/mo
Higher limits, customization, and better sharing.
※ For reference as of January 2026. Prices and plans change often — always check the official site for the latest.
Key features
Source-grounded answers
Answers only from your uploaded sources, with citations.
Audio Overviews
Turns sources into a two-host podcast (Japanese supported).
Video Overviews & mind maps
Auto-generated explainer videos and mind maps.
Study guides
Quizzes, glossaries, and timelines from your material.
Tier lists featuring this service
Categories aggregate their whole subtree; threads count their own votes. Tap a row to open the tier list.
Not ranked in any tier list yet. Cast the first vote in a thread you care about.