ChatGPT and Claude finish a delete in 30 days, Gemini in about 2 months
Claude runs the same clock as ChatGPT, and Gemini roughly doubles it: Google, which runs Gemini, says its own deletion "generally takes around 2 months". Those clocks come from each vendor's own pages, checked on 26 September 2026, and several copies of a chat run on much longer ones.
OpenAI's help page on deleting chats gives the ChatGPT clock in its own words. When you delete a chat, "ChatGPT removes it from your account view immediately", and "OpenAI schedules it for permanent deletion from its systems within 30 days, unless it was already de-identified and disassociated from your account or OpenAI must retain it longer for security or legal obligations." Then the line people miss: "You cannot restore a deleted chat in ChatGPT or through OpenAI Support."
Google's two months comes from its data retention policy, which the Gemini delete page links to for the detail. Deletion "generally takes around 2 months from the time of deletion", that "often includes up to a month-long recovery period", and encrypted backups can hold data "for up to 6 months". The Gemini help page itself promises only that Google will "aim to immediately remove it from view" and then begin a deletion process, with no day count of its own.
| Layer | When a deleted ChatGPT chat leaves it | What can keep it there |
|---|---|---|
| Your view | Immediately | Nothing; archiving is a different action and keeps the chat |
| OpenAI's systems | Scheduled within 30 days | A legal hold, a security review, or a de-identified copy already cut loose from your account |
| The model | Never | Training already done stays done; the opt out applies to new conversations |
How do you delete a ChatGPT conversation, or all of them at once?
One ChatGPT conversation is deleted from its own menu and all of them from Settings, and OpenAI's help pages give the same path on the web and in the iOS and Android apps as of September 2026.
- One chat: open your chat history, select the more options menu (the three dots) next to the chat, select Delete, then confirm.
- Every chat: open Settings (in the apps, open the sidebar and tap your profile icon), select Data controls, then Delete all chats, and confirm. It covers chats inside projects too, and it cannot be undone.
- Shared links: deleting a conversation removes its shared link; any other link is under Settings, Data controls, Shared links, Manage.
Archive is not delete. It "removes the chat from the regular sidebar but does not delete it", archived chats stay searchable, and they keep the same retention as every other saved chat. Deleting a chat also "does not delete files saved separately in Library", so an image generated inside the conversation needs its own delete. For the whole account, on the same 30 day rule, the account deletion guide has the steps.
Does deleting a ChatGPT chat delete its memory? No, and it does not untrain the model
Deleting a ChatGPT chat removes neither a saved memory made from it nor anything a model already learned from it, because both live outside the conversation.
Saved memory. OpenAI's memory help page says saved memories "are stored separately from chat history", and "Deleting the original chat does not automatically delete a separate saved memory." Tell ChatGPT your salary, delete the chat, and the memory about your salary stays under Settings, Personalization, Memory until you delete it there too. Even then, OpenAI "may retain logs of deleted saved memories for up to 30 days for safety and debugging purposes". How ChatGPT memory works covers both memory systems and their switches. Deleting chats frees no space in the saved list either, which is why ChatGPT memory full can still show after you clear your history.
Training. If "Improve the model for everyone" was on when you had the conversation, the conversation was eligible for training the moment it happened. OpenAI's data controls page puts the opt out in the future tense: "After you opt out, new conversations and tasks won't be used to train OpenAI models." A thumbs up or down is its own door, since then "the entire conversation associated with that feedback may be used to train OpenAI models", even after an opt out. Turn off AI training on your chats is the switch, and it only protects what you type after you flip it.
Of the three vendors' pages, Anthropic's is the only one that writes the training layer down. A deleted Claude chat "will not be used to train future models", but "Your data will still be included in model training runs that are already in progress, or in models that have been trained." If you allowed training, Anthropic may also keep a de-identified copy "for up to 5 years in our model training pipelines". Google keeps Gemini chats reviewed by human reviewers after you delete your activity, "for up to three years".
For 136 days in 2025, a court order kept deleted chats on ChatGPT Free, Plus, Pro and Team
From 13 May to 26 September 2025, deleting a chat on ChatGPT Free, Plus, Pro or Team, or through the API without a Zero Data Retention agreement, did not remove it from OpenAI's systems. Magistrate Judge Ona T. Wang, in The New York Times v. OpenAI, had ordered OpenAI to "preserve and segregate all output log data that would otherwise be deleted on a going forward basis". Temporary chats were included.
Enterprise, Edu and Zero Data Retention API customers were never covered, and the court confirmed the Enterprise exclusion at a hearing on 27 May 2025. For everyone else, OpenAI said the held chats sat in a separate system under legal hold, readable only by "a small, audited OpenAI legal and security team".
OpenAI's update of 22 October 2025 says its "obligations under the earlier order ended on September 26, 2025", and that deleted chats and temporary chats "will be automatically deleted from our systems within 30 days" again. Two carve outs remain. OpenAI still stores a limited set of April to September 2025 user data, locked down, while the Times' demand is fought, and conversations from the European Economic Area, Switzerland and the United Kingdom are out of any ongoing hold.
So a chat deleted in July 2025 on a Plus account was not deleted in July 2025, and part of that period's data is still held under lock. That is what the "legal obligations" clause on the help page is for. Who can open a chat while it is held is its own question, answered in who reads your AI conversations.
Claude and Gemini run the same three layers on different clocks
Claude, Gemini and ChatGPT all split a delete into the same three layers; the vendor servers' clock and the exceptions are where they differ, as of September 2026.
| Removed from your view | Gone from the vendor's systems | What outlives the delete | |
|---|---|---|---|
| ChatGPT | Immediately | Scheduled within 30 days | Legal or security holds, de-identified copies, saved memories, Library files |
| Claude | Immediately | Within 30 days | De-identified training copies for up to 5 years if you opted in; flagged chats for up to 2 years, with trust and safety scores for up to 7 |
| Gemini | Google aims to remove it immediately | Around 2 months under Google's retention policy; encrypted backups up to 6 months | Human reviewed chats for up to 3 years |
Anthropic's privacy centre, in an article dated 1 July 2026, says a deleted Claude conversation is "Removed from your chat history immediately" and "Deleted from our back-end storage systems within 30 days". Its exceptions carry numbers: a chat flagged by Anthropic's automated trust and safety systems keeps "inputs and outputs for up to 2 years and trust and safety classification scores for up to 7 years", and feedback you send with the thumbs buttons is kept for 5 years.
Gemini's other published clocks sit around the delete rather than on it. Gemini Apps activity auto deletes after 18 months by default (3 months, 36 months or indefinite are the other settings), and with Keep Activity off a chat is still saved with your account for 72 hours. Deleting a Gemini chat that was shared "doesn't delete the related public link", the reverse of ChatGPT, where the shared link goes with the conversation.
Whizi, where this page's author works, publishes less here than Anthropic does. Its docs say one conversation can be deleted without touching the account, that deleted rows may stay in Cloudflare D1 recovery history for up to 30 days, and that there is no published completion time; Whizi does not train Whizi-owned models on conversations, and it cannot instantly clear a cache a model provider has already created. The AI chatbot privacy comparison scores the training defaults upstream of all this, and the list of things never to paste into an AI covers the one delete that always works: not typing it.
- Use Delete, not Archive, when you want a ChatGPT chat gone; archive keeps it under the same retention
- Expect 30 days on ChatGPT and Claude and about 2 months on Gemini before the chat leaves the vendor's systems
- Check Manage memories after deleting a chat, because a saved memory made from it survives
- Turn off training before the conversation, and skip the thumbs buttons on anything private
- Delete Library files and shared links separately if they matter
- For anything that must never exist, use a temporary chat and keep it out of the prompt in the first place
Frequently asked questions
Does ChatGPT delete conversations after 30 days?
Only the ones you delete. OpenAI schedules a deleted chat for permanent deletion within 30 days of the delete, unless it was already de-identified or must be kept for security or legal obligations. Chats you have not deleted have no automatic 30 day expiry.
Does ChatGPT delete chats without your permission?
No. OpenAI's help page says regular and archived chats "remain saved to your account until you delete them or an applicable workspace retention policy removes them", so on a personal plan nothing expires on its own. A chat missing from the sidebar is usually archived, in another workspace, or signed in under a different account.
Does ChatGPT delete archived chats?
No. Archiving hides a chat from the sidebar but keeps it, searchable and under the same retention as any saved chat. To delete one, open Settings, Data controls, Archived chats, and select Delete next to it.
Can OpenAI see your deleted chats?
For up to 30 days after you delete, the chat still exists in OpenAI's systems under its normal access controls. Chats retained under the 2025 legal hold sit in a separate system that OpenAI says only a small, audited legal and security team can open. Once deletion completes, OpenAI states it cannot restore the chat, in ChatGPT or through support.
