How to Delete ChatGPT History: Memory & GDPR

What ChatGPT Stores (and Why It Matters)

When you use ChatGPT, OpenAI stores your conversations on their servers. By default, they may also use those conversations to improve their AISoftware that can perform tasks that normally require human thinking, like understanding language or spotting patterns. models. That is worth knowing before you type anything personal.

But there is a second, less obvious thing ChatGPT stores: your Memory. Since 2024, ChatGPT can remember facts about you across conversations: your name, your job, your dietary preferences, or that you care for an elderly parent. This information sits in a separate system from your chat history. Deleting your chats leaves the Memory completely intact.

We checked both systems in a UK ChatGPT account in July 2026. When we first deleted our chat history, we assumed everything was gone. It was not. Memories were still visible under Settings and Personalization and Manage memories. This guide shows you how to clear both.

If you want to know what you should never type into ChatGPT in the first place, read our guide on what not to tell ChatGPT.

How to Delete Individual ChatGPT Chats

If you want to remove one or two specific conversations from your history, this is the simplest option.

On desktop (chatgpt.com):

1. Log into ChatGPT. Your past conversations appear as a list on the left-hand sidebar.
2. Move your cursor over the conversation you want to delete. A small icon of three dots (…) appears on the right of the title.
3. Click the three dots, then click "Delete".
4. Click "Delete" again when asked to confirm. The chat disappears from your sidebar immediately.

On the ChatGPT mobile app:

1. Open the app and tap the menu icon at the top left to see your past conversations.
2. Press and hold the conversation you want to remove. A "Delete" option appears.
3. Tap Delete, then confirm.

Once deleted, the conversation is removed from your view. According to OpenAI's support pages, it may take up to 30 days for the data to be fully purged from their systems.

How to Delete All Your ChatGPT Chats at Once

If you want a clean slate and have a lot of conversations to clear, you can delete everything in one go.

On desktop:

1. Click your name or profile icon in the bottom-left corner of the screen.
2. Click "Settings".
3. Click "Data Controls" in the left-hand menu.
4. Click "Delete all" next to "Delete all chats".
5. Click "Delete all" again to confirm. All conversations are removed from your sidebar.

On the mobile app:

1. Tap your profile icon at the bottom of the screen.
2. Tap "Data Controls".
3. Tap "Clear Chat History" and confirm.

Deleting your chats removes them from your view and schedules them for permanent deletion on OpenAI's servers, but it does not touch your Memory or remove data already used for model training. Both of those are covered in the sections below.

Chat History and Memory Are Not the Same Thing

This is the part most guides skip, and it catches people out.

Your chat history is the archive of your past conversations: the list you see in the sidebar. It is useful for going back and re-reading a previous exchange.

Your Memory is different. It is a separate list of facts ChatGPT has decided to keep about you, so it can feel more personalised across sessions. You can think of it as a notepad ChatGPT keeps on your behalf. It might include things like "prefers simple explanations", "has a cat named Biscuit", "lives in Bristol", or "recently retired".

Deleting your chat history does not touch this notepad. If you want ChatGPT to forget those personal details, you need to clear your Memory separately.

How to Clear Your ChatGPT Memory

There are a few ways to manage Memory. You can remove entries one at a time, wipe the whole list in one go, or turn the feature off entirely so nothing new gets added.

To see and delete individual memories:

1. Click your profile icon in the bottom-left corner.
2. Click "Settings", then "Personalization".
3. Click "Manage memories". A list of everything ChatGPT has noted about you appears.
4. Click the bin icon next to any entry to remove it. Or click "Clear all" to wipe the entire list.

To turn Memory off completely:

1. Go to Settings, then Personalization.
2. Toggle off "Memory". ChatGPT will no longer create or reference memories. Any existing memories remain stored but are not used. To remove them, clear the list first, then toggle off.

According to OpenAI's Memory FAQ, toggling Memory off prevents the system from adding new memories, but does not delete existing ones automatically.

How to Stop ChatGPT Saving Future Conversations

If you would rather ChatGPT did not save any of your conversations going forward, you can turn off chat history and training entirely. This is roughly equivalent to browsing in "private mode".

1. Click your profile icon, then "Settings".
2. Click "Data Controls".
3. Find the toggle labelled "Improve the model for everyone" and switch it off. When this is off, your new conversations are not used for training ChatGPT's AI models.

Note that when you turn off "Improve the model for everyone", your new chats are still saved to your history by default. If you also want to stop new conversations being saved, look for the "Chat history & training" toggle in the same Data Controls screen. Turning that off removes both history and training in one step, and new conversations are deleted after 30 days.

If you are concerned about what data OpenAI holds across all your AI tools, our AI privacy settings guide covers ChatGPT, Gemini, Copilot, and Claude side by side.

How to Use Temporary Chat for Sensitive Topics

If you want a one-off conversation that is not saved at all, ChatGPT's "Temporary Chat" feature is useful. The conversation does not appear in your sidebar history and, according to OpenAI, is not used to train their models.

To start one, look for the small dropdown menu at the top of the chat window. Click it and select "Temporary chat". The conversation will have a different label to show it is temporary. Once you close the session, it is gone.

Even temporary chats may generate brief logs for safety monitoring, but they will not sit in your history or contribute to your Memory.

Your UK Rights Under GDPR: Formal Data Deletion

If you live in the UK, you have rights under the UK GDPR (General Data Protection Regulation) that go beyond what the settings menu offers.

The right to erasure (Article 17), also called the "right to be forgotten", gives you the right to ask OpenAI to delete all personal data they hold about you. This includes your chat logs, account data, and any other information associated with your account.

You can make a formal request via OpenAI's Privacy Portal. The process is:

1. Go to OpenAI's Privacy Portal (privacy.openai.com).
2. Select "Delete my account and data" or "Submit a privacy request" depending on the option shown.
3. Complete the form. OpenAI is required under UK GDPR to respond within 30 days.

If you want to see what data OpenAI holds before deleting it, you can also submit a Subject Access Request through the same portal. This gives you a copy of your data first, which is worth doing if you want to check what has been stored.

The ICO (Information Commissioner's Office) has published guidance on your rights when using AI tools like ChatGPT. Their explanation of the right to erasure is a clear summary of what you are entitled to and when companies can decline a request.

For a full picture of your rights across all major AI tools, our guide on is ChatGPT safe covers the broader safety and privacy picture.

What Does "Deleted" Actually Mean?

When you delete a chat, it disappears from your view immediately. But "deleted" in this context does not mean the data is gone from OpenAI's servers at that instant.

According to OpenAI's privacy policy, data that you delete may be retained for up to 30 days in backup storage before it is permanently purged. This is fairly standard practice across technology companies. They keep short-term backups so that accidental deletion can be reversed before it becomes permanent.

There is also a deeper question: if ChatGPT has already been trained on your data, does deleting it remove that training? The honest answer is no. Once information has been used to train a large AI model, it becomes embedded across billions of model parameters rather than stored as a discrete record. Removing specific information from a trained model is technically very difficult, and OpenAI has acknowledged in their help pages that they may not be able to fully honour erasure requests for data that has been incorporated into model training in this way.

This is why the advice to avoid typing sensitive personal information in the first place matters more than deleting after the fact. The settings controls work for your account data. For information already used in training, the window has passed.

FAQ: ChatGPT History and Privacy Questions Answered

For a broader look at how to use AI tools safely and keep your personal information protected, visit our guide to staying safe with AI.

Want to learn how to use ChatGPT confidently without worrying about privacy missteps? The WellWired AI Academy walks you through privacy settings, safe habits, and everything a beginner needs. Thirty modules, at your own pace.