Is Gemini Notebook (NotebookLM) safe for business data?
Google says Gemini Notebook, formerly NotebookLM, does not use your files and chats to train its AI unless you give feedback; with a Workspace work account, nothing is used or reviewed by people, even with feedback.
Training, plan by plan
- Depends: Personal Google Account: not used, unless you give feedback.
- Not used for training: Google Workspace: not used.
What it does with your data
| Question | Personal Google Account | Google Workspace (work and school accounts) |
|---|---|---|
| Trains on your data by default? | Not used, unless you give feedback. Google says your files, results, and chats will not be used to directly train its AI unless you choose to give feedback. Read on October 24, 2026 · source: support.google.com | No. Google says Workspace uploads, questions, and answers are not reviewed by people and not used to train AI, even if you give feedback. Read on October 24, 2026 · source: support.google.com |
| How long chats are kept | Feedback you send, with the content it includes, is kept for up to 3 years, separated from your Google Account. The pages we read do not say how long the rest is kept. Read on October 24, 2026 · source: support.google.com | Not confirmed. The pages we read do not say how long Workspace content in Gemini Notebook is kept. Not confirmed · page checked: knowledge.workspace.google.com, October 24, 2026 |
| Who can read them | Only you, unless you give feedback; then trained Google reviewers may see the conversation, with your account details removed first. Read on October 24, 2026 · source: support.google.com | Not Google reviewers. Google says Workspace files, chats, and results won’t be reviewed by human reviewers. Read on October 24, 2026 · source: knowledge.workspace.google.com |
| Where data is stored | Not confirmed. The pages we read do not say where Gemini Notebook stores your files and chats. Not confirmed · page checked: support.google.com, October 24, 2026 | Not confirmed. The pages we read do not say where Gemini Notebook stores your files and chats. Not confirmed · page checked: support.google.com, October 24, 2026 |
| How to delete | Not confirmed. The pages we read do not say how to delete notebooks or your Gemini Notebook data. Not confirmed · page checked: support.google.com, October 24, 2026 | Not confirmed. The pages we read do not say how to delete notebooks or your Gemini Notebook data. Not confirmed · page checked: support.google.com, October 24, 2026 |
How to turn training off
- On a personal Google Account, do not rate answers on notebooks with client material, since feedback sends the full conversation to human reviewers. Source: support.google.com
Safer setup for a small team
Use Gemini Notebook with your Google Workspace work account, and on personal accounts skip thumbs up or down on anything confidential.
Plan to approve: Gemini Notebook with a Google Workspace work account
Setting to check: No feedback on client material (personal accounts)
A line for your AI policy: Staff use Gemini Notebook only with their company Google Workspace account.
Want this in your team’s AI policy? The SafeStart kit, a plain-English AI policy and training for small teams, is coming soon.
Questions about your own setup? Write to hello@terrapilgrim.org.
What changed
No changes recorded since we first published this page on October 24, 2026. Every change goes in the change log.
Sources (2)
- support.google.com/gemininotebook/answer/17004255 · read on October 24, 2026
“The content in Gemini Notebook will not be used to directly train our foundational AI models, unless you choose to provide feedback.”
- knowledge.workspace.google.com/admin/generative-ai/notebooklm/turn-notebooklm-on-or-off… · read on October 24, 2026
“Your uploaded files, chats and model outputs won't be reviewed by human reviewers or used to improve generative AI models.”
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