How to Delete Gemini History, and What the Delete Leaves Behind
By Matthew Firth, founder of ModelBrain · Nov 10, 2026 · 5 min readOur own proposal: delete a Gemini chat in three passes, the chat, its Activity entry and then everything that outlives both. Google treats the sidebar and Activity as one record, but a public share link, the Gem you used and a branched chat each have their own delete. On November 10, 2026 we ran the same check on our own store: saved a marker memory, recalled it, forgot it, and recalled again to confirm it was gone.
Delete one chat or everything
On a computer, open gemini.google.com and hover over a chat in the side panel, then choose More and Delete. To delete in bulk, click Settings and help, then Activity, which is the same list as myactivity.google.com/product/gemini and works from any device. Above the list you can delete All time, the Last hour or Last day, or a Custom range, and next to any day or item you can delete just that one. According to Google's page on managing and deleting Gemini Apps activity and its page on managing recent chats, checked November 10, 2026, deleting a chat from the side panel also deletes it from Gemini Apps Activity, and the reverse is true too: once the activity is gone, the chat no longer shows in your recent and pinned chats.
Our own proposal: delete a Gemini chat in three passes
The sidebar and the Activity list look like two places, but Google describes one record seen from two sides. The part people miss is what the delete does not reach. We read both pages line by line and sorted the results into what goes, what stays and what to check next.
| What you delete | What goes with it | What stays |
|---|---|---|
| A chat in the side panel | Its Gemini Apps Activity entry, and content made in that chat such as Canvas docs and apps | A public link, if you shared the chat |
| Activity (all time, a range, a day or an item) | The chat disappears from recent and pinned chats | Gems you used in those chats |
| A Gemini Live chat's activity | Its audio, transcript, videos and screenshares | Nothing else that Google lists |
| A branched chat, or the original it branched from | Only the one you delete | The other chat of the pair |
Pass one is the chat, pass two is the Activity entry, and pass three is the list of things that outlive both. Google says that deleting a shared chat does not delete its public link, that deleting a conversation with a Gem does not delete the Gem, and that deleting a branched chat leaves the original in place. Each of those has its own delete.
What Keep Activity changes
Chat history in Gemini depends on a setting called Keep Activity, which is on by default for adults. Google says the recent chats list is only available with it on. If you turn it off, new chats do not appear in your Activity, but Google still saves conversations to your account for up to 72 hours to provide the service and process feedback. Gems you create are still saved, and chats with Gems are not.
Auto-delete
By default, Gemini Apps activity older than 18 months is deleted automatically. You can change that to 3 or 36 months, or choose Do not auto-delete, from the same Activity page.
Work and school accounts
Everything above is for a personal account. If you use Gemini through a work or school account, your Google Workspace administrator controls the activity settings, and the recent chats page says you cannot delete chats. If you came here because of an employer, our article on what a temporary chat leaves on shows the same question for ChatGPT.
How long Google takes to delete
When you delete manually, or auto-delete runs, Google says it immediately starts removing the activity. First it aims to remove it from view at once, then it runs a process designed to delete the data from its storage systems.
What our own memory tool shows about checking a delete
The habit we suggest, check the second place, is the one we use on our own store. On November 10, 2026 we saved a memory containing a unique marker phrase in ModelBrain, recalled it and got it back as the top result. We then forgot it and ran the same recall again. The marker memory no longer came back. A delete is only done when the second look agrees with the first. The same approach applies to ChatGPT memory and ChatGPT history.
Questions people ask
How do I delete a chat in Gemini? Hover over it in the side panel, click More, then Delete. It is removed from your Gemini Apps Activity too.
How do I delete all my Gemini history? Open Activity from Settings and help, or go to myactivity.google.com/product/gemini, then choose Delete and All time.
Can I stop Gemini saving my chats? Yes. Turn off Keep Activity from the Activity page. Google still keeps conversations for up to 72 hours.
Does deleting a chat remove its public link? No. A shared chat's public link is deleted separately.
Before you delete
Deleting is one of four things you can do with your chat history. The others are reading, searching and moving it, and they are covered in AI chat history: read, search, move and delete it. To look through an export before you delete anything, open it in the free Chat Export Reader, which runs in your browser and uploads nothing.