How to give ChatGPT (and every AI) permanent memory

The short answer: ChatGPT's built-in memory only works inside ChatGPT and lives on OpenAI's servers. To give ChatGPT, Claude, and every AI you use one memory that is permanent, private, and shared, you keep your knowledge in a folder of plain files on your own computer, then connect each AI to that folder. Teach one AI something, and all of them can read it, because they all read from the same files. A local-first tool like Callosium sets this up for you.

Why your AI keeps forgetting you

Every AI assistant remembers you only inside its own walls. ChatGPT remembers you inside ChatGPT. Claude remembers you inside Claude. Open a new tool, or even a new chat, and you start from zero: re-explaining your work, your projects, the people you work with, the way you write.

Worse, that memory isn't really yours. It sits on a company's servers, you can't open it or read it, and it disappears the day you switch tools or cancel. This month one of the best-funded AI memory products was acquired and began shutting down, cutting off regions and deleting accounts. When your memory is a feature you rent, it can be switched off.

The fix: one shared brain, in files you own

The durable way to give an AI memory is boring on purpose. Instead of trusting each app to remember you, you keep what you know in plain files (simple text files, the kind any program can open) in a folder on your own machine. Then you point every AI at that folder. Here is the whole idea in three steps.

But my notes stay private, right?

Yes. With a local-first setup, your files never leave your machine. The AI reads them where they sit; nothing is uploaded, nothing is sold. This is the opposite of the usual trade, where the price of a smarter assistant is handing a company everything you know. You keep the files, you keep the control, and if you ever delete the tool, your knowledge is still sitting there, readable.

What about ChatGPT's own memory?

ChatGPT memory is genuinely useful for casual, single-tool use, and it is zero-setup. If you only ever use ChatGPT and don't mind your context living on OpenAI's servers, it may be all you need. The shared-files approach wins when you use more than one AI, when you want to read and edit what the AI thinks it knows, or when you want your memory to outlive any single product. It is portability and ownership versus convenience.

Does this work with Claude, Cursor, and my Obsidian vault?

Yes to all three. Because the memory is just plain files, any AI tool that can read connected apps can read it, and an Obsidian vault already is plain files, so there is nothing to convert or import. You point Callosium at the folder you already have.

Frequently asked questions

Can ChatGPT remember things permanently?

ChatGPT's built-in memory only works inside ChatGPT and lives on OpenAI's servers. For memory that is permanent, portable, and shared across every AI you use, keep your knowledge in plain files you own and connect each AI to those files.

How do I give ChatGPT and Claude the same memory?

Store your knowledge once in a folder of plain files on your computer, then connect each AI to that folder. Teach one AI something and all of them can read it, because they all read from the same files.

Does giving an AI memory mean sending my data to the cloud?

No. With a local-first tool like Callosium, your files stay on your machine. The free version never uploads your notes anywhere; the AI reads them locally.

Does this work with my Obsidian vault?

Yes. It works on plain files, and an Obsidian vault already is plain files. Nothing to convert or import.

Is it free?

The core is free, forever. Callosium opens early access on 4 August 2026; the free tier covers the shared memory, the recall, connecting your AIs, offline use, and both English and Arabic. A paid tier only adds multi-device sync through your own cloud.