Google Gemini

"Chats reviewed by human reviewers (and related data like your language, device type, location info, or feedback) are not deleted when you delete your activity. Instead, they are retained for up to three years. We keep some data until you delete your Google Account, such as information about how often you use Gemini Apps."

Users cannot delete chats that have already been selected for human review — those are retained for up to 3 years regardless of user action. Some usage data is kept indefinitely until the entire Google Account is deleted.

"System permissions and device data when you use Gemini mobile apps, such as call and message logs, contacts (to help you keep in touch), installed apps (like Clock), language preferences (to help you speak to Gemini), screen content (to help you act on it), and other app info like page context and URL (when you use Gemini overlay to ask questions)."

Gemini collects highly sensitive device data including call/message logs, contacts, a list of installed apps, and screen content — far beyond what a conversational AI assistant strictly requires.

"Location data is always collected if you use Gemini Apps so that they can provide you with a response that is relevant to your query. Gemini may also receive precise location data from another Google service, like Google Maps, even if the precise location setting in the Google app is off."

Location data collection is mandatory and cannot be opted out of. Precise location can be obtained from other Google services even when the user has disabled precise location in the Gemini app itself.

"Data shared between Gemini and Connected Apps plus other Google services includes: Info from your Gemini chats, Info about your device and preferences (like language), Info about your location, Info and content from your Connected Apps (like emails, files, events, photos, and videos). Third-party apps use data from Gemini consistent with their own privacy policies and terms."

Gemini shares chat data, device info, location, and content from connected apps with both Google services and third-party apps, with third parties governed only by their own policies.

"Information from your Connected Apps and other Google services you use with Gemini Apps (such as your Search or YouTube history, or your page context and URL from Chrome). If you change your Gemini Apps settings, other Google settings won't change. Those settings, like Web & App Activity or Location History, may keep saving location and other data as you use other Google services."

Gemini pulls in data from Search history, YouTube history, Chrome browsing, Gmail, Google Photos, and other Google services, creating a unified profile across the Google ecosystem. Opting out of Gemini tracking does not stop other Google services from continuing to collect data.

"Your Gemini Apps chats are not being used to show you ads. If this changes, we will clearly communicate it to you."

Google reserves the ability to start using Gemini chat data for advertising in the future, with only a promise to 'communicate' the change — no opt-in consent required. The broader Google Terms of Service also allow unilateral changes.

"If you delete your activity, past chats already reviewed by service providers aren't deleted because they aren't connected to your Google Account. Instead, they're retained for up to 3 years. Disconnecting an app or deleting data in a connected app doesn't delete any data from Gemini Apps Activity. Deleting data in Gemini Apps Activity doesn't delete data that other apps have received from Gemini."

Deleting activity does not actually remove data that has been reviewed by humans or shared with connected apps. Data survives deletion in multiple places across the Google ecosystem, and users have no way to purge it.