ChatGPT memory is the feature that lets ChatGPT keep preferences, facts and recurring tasks across separate conversations, instead of starting from scratch with every new chat. The memory builds up the more you chat with ChatGPT and uses that information to give more relevant answers. You stay in control: you can view the memory, edit it, delete parts of it or switch it off completely.
What ChatGPT memory actually stores
ChatGPT memory stores short, relevant pieces of information from your conversations: your job, recurring projects, writing preferences or regular tasks. That is different from ordinary chat history, because memory works across conversations and is carried into every new chat you start.
ChatGPT has two separate settings here that are often confused. Saved memories contain individual, explicit memories that ChatGPT recorded itself or that you gave it. Referencing chat history is a broader setting that lets ChatGPT also draw on the content of older conversations, without that content being stored as a separate memory.
Memory works regardless of how you enter something, so what you share through ChatGPT voice mode can be stored just as well as typed text.
The memory system updates memories automatically and prioritises which details count most, so that it can build on the context you have already shared.
How to turn ChatGPT memory on and off
You turn ChatGPT memory on and off in Settings, under Personalization. There you will find separate toggles for saved memories and for referencing chat history, which you can switch on or off independently of each other.
- Open Settings from your profile.
- Go to Personalization or Personal info.
- Switch Reference saved memories and Reference chat history on or off separately.
- If you like, type “What do you remember about me?” in a chat to see what has been stored.
If you switch off both settings, ChatGPT behaves like a chatbot without memory across conversations again: every new chat then starts from zero, just as before this feature was introduced.
How to delete or edit ChatGPT memory
You can delete or edit ChatGPT memory at two levels: remove a single memory, or clear the entire memory at once. You will find both actions under Manage memories in the same settings section.
For a single memory, open the overview of saved items and delete only what is no longer relevant, such as a completed project. If you want to get rid of everything at once, choose the option to clear the entire memory. That is permanent: memories, once deleted, are not automatically rebuilt.
Within an ongoing conversation, a direct instruction also works: ask ChatGPT to stop remembering something, and the related memory disappears.
Using ChatGPT memory with temporary chats
Using temporary chats is the way to keep one specific conversation out of ChatGPT memory without changing the setting itself. A temporary chat does not appear in your chat history, does not feed the memory and disappears afterwards.
That is useful whenever you share information you do not want to influence future answers, for example a one-off, sensitive question about an ongoing case or a topic unrelated to your usual work. You do not need to change any permanent setting; you choose it conversation by conversation.
For work involving identifiable client or company data, this is a simple way to prevent that information from ending up in your account’s memory.
Differences in ChatGPT memory between plans
The differences in ChatGPT memory between plans lie mainly in depth and scope, not in whether the feature exists. The free version has access to a lighter form of memory, based on recent conversations and a smaller number of saved memories.
On Plus and Pro, memory goes deeper and retains more context over a longer period, which is particularly noticeable with recurring projects.
For Business, Enterprise and Edu users, there is also no training by default on content shared within the account, including earlier chats and saved memories.
Using ChatGPT memory in your work
ChatGPT memory works best in your work for tasks that come back regularly: a fixed report structure, a client for whom you always keep the same tone, or a project that runs over several weeks.
The limit lies with sensitive information. Client data, identifiable personal data or confidential business information does not belong in the memory of an individual account just because it is convenient. A temporary chat or an explicit instruction not to remember something is then the safer route.
For work that goes beyond individual memories, with your own files and instructions, a ChatGPT project is often a sturdier alternative to relying on memory alone.
If you want to get to grips with using ChatGPT more broadly, the LearnLLM ChatGPT Course is a logical next step.
Frequently asked questions about ChatGPT memory
Once you have used ChatGPT memory for a while, questions come up about projects and about what remains after you delete something.
How does ChatGPT memory work in a project?
ChatGPT memory in a project follows the setting you choose when you create it: default memory or project-only memory. With project-only memory, ChatGPT does not use previously saved memories and does not refer to conversations outside that project. You can only make that choice for a new project, because an existing project cannot be converted. A project you share automatically gets project-only memory.
Does a memory disappear if you delete the chat?
No, a memory does not disappear automatically when you delete the chat in which you shared the information. You delete a saved memory separately in the settings. If you want something gone completely, OpenAI says you should delete both the memory and the original chat. OpenAI may keep logs of deleted memories for up to 30 days for safety and debugging.
Is there a limit to how much ChatGPT can remember?
According to OpenAI, there is no separate limit to how much ChatGPT can remember through your chat history. For saved memories, depending on your plan and platform, the settings may include features such as automatic prioritisation and version history. Which details from earlier chats ChatGPT carries over can change over time, because ChatGPT updates what is useful to remember.
