Is Gemini encrypted?
No. Google can read your Gemini chats, and human reviewers read some of them. Turning off Keep Activity or using a temporary chat limits how chats are used, but neither seals anything.
- Your chatsGoogle can read itGoogle uses chats to answer you and keep its services safe, and with Keep Activity on, to improve its AI with human reviewers.1
- Files you uploadGoogle can read itUploads are saved with your activity and, with Keep Activity on, can be used to improve Google's services with human reviewers.1
- Voice chatsGoogle can read itAudio and Gemini Live recordings are kept in your activity and used for improvement only if you turn that on, but their transcripts follow Keep Activity.1
- Who holds the keys
- Google holds the keys.
- What Google can still see
- Everything you send, plus your location, device details and anything from apps you connect, though Google says it doesn't use Gemini chats to show you ads.
Turn off Keep Activity
- On your computer, go to gemini.google.com.
- Click Activity.
- Near the top, click On, then choose Turn off or Turn off and delete activity.
This doesn't seal anything. Google still keeps new chats with your account for up to 72 hours, and chats already picked for human review stay for up to 3 years, apart from your account. Some connected apps stop working while it's off.
Email is worth checking next: Gmail, Outlook and iCloud Mail can all read your mailbox. See which email services can.
Do humans read my Gemini chats?
Some, yes. Google says a subset of chats are read by human reviewers, including trained reviewers at its service providers, to rate answers, improve them and keep Gemini safe1. Google asks you not to enter anything confidential you wouldn't want a reviewer to see1.
Reviewed chats are disconnected from your account and kept for up to 3 years, even if you delete your activity1.
Does Gemini train on my chats?
If Keep Activity is on, yes, and it's on by default for adults2. Google uses that activity to improve its services, including training its AI models1.
With Keep Activity off, Google says your future chats won't train its models unless you send feedback1. Google also says your Gemini settings don't stop it from turning chats into anonymized data to improve its services1.
Are Gemini temporary chats private?
They stay out of your activity and aren't used to train Google's AI models1. But Google still keeps them with your account for 72 hours, and still uses them to keep its services safe, with help from human reviewers1.
To start one on a computer, go to gemini.google.com and click Temporary chat next to New chat3.
How Gemini compares
Sorted by how many parts are sealed by default, then by how many can be. Ties go A to Z.
Sources
- Gemini Apps Privacy Hub, Google. Read on 25 Oct 2026.
- Manage & delete your activity in Gemini Apps, Google. Read on 25 Oct 2026.
- Use Gemini Apps, Google. Read on 25 Oct 2026.
Changes to this answer
- First published.