NotebookLM
Good disclosure · High confidence
Keeps user content out of foundational model training by default (only used if you send thumbs up or down feedback), lets you own generated content, and names a three-year feedback retention window.
What the policy says
Training is opt-in
The NotebookLM article states content will not be used to directly train foundational AI models unless the user chooses to provide feedback, and Workspace and Education uploads are never reviewed by humans or used to train models.
User owns generated content
The copyright section says NotebookLM lets users generate original content and that Google will not claim ownership over that content.
Three-year feedback retention named
Reviewed feedback, included content, and related data are retained for up to three years, disconnected from the user's Google Account, which is a named period above ninety days.
Full data-subject controls
The Google policy provides export of account content, deletion of items or the entire account via My Activity, review and update of personal info, and ad and activity opt-out controls through My Ad Center.
Details
- Category
- Productivity
- Modalities
- text
- Processes biometrics
- No
- Policy last updated
- 2026-05-26
- Region scored
- Global / US-default
- Assessed
- 2026-06-20
Every grade scores what an app discloses about its data governance in its public privacy policy and terms, not its verified behaviour. A strong policy can hide weak practice, and a thin policy can hide good practice.