Google Gemini: what Google says about your data

With a personal Google account, Gemini activity can be reviewed by people and used to train models unless Keep Activity is off. In Google Workspace, Google says Gemini does not use customer data for training without permission.

Sources checked November 7, 2026

Personal plans

Gemini Apps with a personal Google account

Training on your content: Google’s Gemini Apps Privacy Hub says activity is used to improve its services, including training generative AI models, and a subset of chats is read by human reviewers.
How long it is kept: With Keep Activity off, chats are kept with the account for 72 hours. Reviewed chats are kept for up to three years and are not deleted when you delete activity.
Your controls: Turning Keep Activity off stops future chats being used to train models, unless you send feedback.

Business plans

Gemini in Google Workspace

Training on your content: Google’s Workspace privacy hub says customer data is not used for training without the customer’s permission or instruction, and is not human reviewed outside your domain.
How long it is kept: The page says interactions with Gemini stay within your organization.
Your controls: Workspace admin settings for Gemini (see the privacy hub).

In Google's words

“Workspace does not use customer data for training models without customer’s prior permission or instruction.”
Source
“Reviewed chats are retained for up to three years.”
Source

What to write in your AI register

Which plan your business uses, and whether staff sign in with company or personal accounts.
Whether the training setting is on or off, who checked it and when.
What kinds of data staff may put in (for example: no client names, no payment data).

Sources

Policies change; check the linked page before you decide. This page describes what the vendor says. It is not legal advice and not a review of the vendor.