ChatGPT memory rewrites itself. How do I audit what it remembers?

What changed with dreaming?

An audit now needs a dated record of what you saw, because the stored account of an event can change as time passes. This page is about tracing those changes, rather than choosing between the summary and saved memories.

OpenAI's post of 4 June 2026 says saved memories first launched in April 2024, and that dreaming, a background process that curates memory from chat history, was first added in April 2025. It says the update is available to Plus and Pro users in the US, and will reach additional countries and Free and Go users over the coming weeks. OpenAI: Dreaming, better memory for a more helpful ChatGPT (4 June 2026). Verified 26 October 2026.

OpenAI says memories built by dreaming are automatically updated as time passes. Its example is that "You're going to Singapore in July" becomes "You went to Singapore in July 2026". These memories are reviewable through a summary on the memory summary page. The post does not describe a change history. OpenAI: Dreaming, better memory for a more helpful ChatGPT (4 June 2026). Verified 29 October 2026.

Is there a change history for ChatGPT memory?

Yes for saved memories: use view history in the three dot menu to view and restore prior versions. The summary shows a last updated time. The cited pages do not describe version history for that summary.

OpenAI's Memory FAQ says you can view and restore prior versions of saved memories by tapping view history in the three dot menu. The memory summary shows when it was last updated, and OpenAI says it will not include everything ChatGPT remembers from your chats. Read 29 October 2026; the page shows a relative update time only. OpenAI Help Centre: Memory FAQ. Verified 29 October 2026.

How do I audit what ChatGPT remembers?

Keep a dated note of each check. Treat ChatGPT's answer as something to compare with the records, not as a complete inventory.

1. Read the summary

   Open Settings, Personalization, Memory. Copy the summary and its last updated time into your notes.

   OpenAI's Memory FAQ says you can view and restore prior versions of saved memories by tapping view history in the three dot menu. The memory summary shows when it was last updated, and OpenAI says it will not include everything ChatGPT remembers from your chats. Read 29 October 2026; the page shows a relative update time only. OpenAI Help Centre: Memory FAQ. Verified 29 October 2026.

2. Check saved-memory history

   Open saved memories. Use view history in the three dot menu and record the current and prior versions you find.

   OpenAI's Memory FAQ says you can view and restore prior versions of saved memories by tapping view history in the three dot menu. The memory summary shows when it was last updated, and OpenAI says it will not include everything ChatGPT remembers from your chats. Read 29 October 2026; the page shows a relative update time only. OpenAI Help Centre: Memory FAQ. Verified 29 October 2026.

3. Compare ChatGPT's answer

   Ask ChatGPT what it remembers about you. Compare its answer with the summary and saved memories, and note any differences.

4. Check every source

   Look through past chats, archived chats, files, the memory summary and connected apps for the information you are tracing.

   OpenAI's Memory FAQ says that to fully delete something ChatGPT may know about you, you need to delete every source where it appears: past chats, archived chats, files, the memory summary and connected apps. OpenAI Help Centre: Memory FAQ. Verified 27 October 2026.

5. Keep your export separately

   Export your data where your plan allows it. Note that memory is not named in OpenAI's description of that export.

   Settings, Data controls, Export data gives a ZIP of chat history and account data, with a link that expires after 24 hours from receipt. Exports can take up to 7 days to arrive. Available on Free, Go, Plus, Pro and eligible Edu workspaces, not Business or Enterprise. Memory is not named as part of the export. OpenAI Help Centre: Exporting your ChatGPT history and data. Verified 27 October 2026.

6. Correct and date your notes

   Type a correction to the memory summary. Record what you changed and the date, then compare again on your next check.

   The memory summary is a high-level view of information ChatGPT may use to personalise responses. You correct it by typing a correction or highlighting text. Saved memories are details you ask ChatGPT to remember, or that it saves as useful context, stored separately from chat history. OpenAI Help Centre: Memory in ChatGPT. Verified 26 October 2026.

Is dreaming memory on in the UK yet?

The rollout evidence below was checked on 26 October 2026. It does not confirm UK availability. Check your own account rather than assuming that a US announcement applies here.

OpenAI's improved memory began rolling out on 4 June 2026 to Plus and Pro users in the US, with Free and Go plans and additional countries to follow over the next few weeks. No memory entry in the release notes names the UK or the EEA as of 26 October 2026; a 12 June entry says the memory summary is still rolling out across plans and countries. OpenAI Help Centre: ChatGPT release notes. Verified 26 October 2026.

AI memory UK availability

What does an auditable memory look like?

Typed Memory: Every memory entity carries a category: People, Documents, Facts, Events, Episodes, and further types beneath them. Queryable, editable, versioned, audited.

Universal Audit: Every meaningful action is logged in an append-only audit log you can read.

Every consequential read and write lands in an audit log you can see. Entries are never edited. Read entries are removed after 90 days and detail after 275, as our retention page sets out.

Nothing is saved until you confirm.

Export any time.

What changed

29 October 2026: an audit must check memories separately from chats. Deleting a chat does not necessarily delete the saved memory made from it. The deletion evidence below retains its 28 October verification date.

Deleting a chat alone does not necessarily delete a separate saved memory created from that chat. OpenAI Help Centre: Memory in ChatGPT. Verified 28 October 2026.

Can I restore an earlier saved memory?

Yes, through view history in the three dot menu. OpenAI's Memory FAQ says you can view and restore prior versions of saved memories by tapping view history in the three dot menu. The memory summary shows when it was last updated, and OpenAI says it will not include everything ChatGPT remembers from your chats. Read 29 October 2026; the page shows a relative update time only.

OpenAI Help Centre: Memory FAQ. Verified 29 October 2026.

Does the memory summary show everything ChatGPT remembers?

No. Record its last updated time, but do not treat it as a complete inventory. OpenAI's Memory FAQ says you can view and restore prior versions of saved memories by tapping view history in the three dot menu. The memory summary shows when it was last updated, and OpenAI says it will not include everything ChatGPT remembers from your chats. Read 29 October 2026; the page shows a relative update time only.

OpenAI Help Centre: Memory FAQ. Verified 29 October 2026.

Does dreaming have a published change history?

The cited post does not describe one. Saved-memory history is a separate feature. OpenAI says memories built by dreaming are automatically updated as time passes. Its example is that "You're going to Singapore in July" becomes "You went to Singapore in July 2026". These memories are reviewable through a summary on the memory summary page. The post does not describe a change history.

OpenAI: Dreaming, better memory for a more helpful ChatGPT (4 June 2026). Verified 29 October 2026.

Is the data export a complete memory audit?

No. Memory is not named in the export description, so keep source checks and dated notes too. Settings, Data controls, Export data gives a ZIP of chat history and account data, with a link that expires after 24 hours from receipt. Exports can take up to 7 days to arrive. Available on Free, Go, Plus, Pro and eligible Edu workspaces, not Business or Enterprise. Memory is not named as part of the export.

OpenAI Help Centre: Exporting your ChatGPT history and data. Verified 27 October 2026.

Does deleting a chat remove the memory I am auditing?

Not necessarily. Check the saved memory separately. Deleting a chat alone does not necessarily delete a separate saved memory created from that chat.

OpenAI Help Centre: Memory in ChatGPT. Verified 28 October 2026.