Rent the intelligence.
Own the memory.
The AI you use is a commodity — you rent it, and you'll swap it for a better one. The memory you build is the durable, personal asset. It should be yours outright: a file on your machine, not a row in someone else's cloud.
Models are rented. Your memory should be owned.
Most "AI memory" is rented
And rented memory comes with strings you only notice later.
The memory features arriving in every AI product are real, and mostly free. But they're rented: the memory lives on the vendor's servers, you can't fully export it, it often trains their model, it's locked to their one provider, and it's gone — or frozen — the moment you stop paying. You don't own it. You're allowed to use it while you keep subscribing. Memrith inverts every line of that.
| Rented memory (cloud AI features) |
Memrith (owned) |
|
|---|---|---|
| Where it lives | The vendor's servers | A file on your machine |
| Export all of it | Rarely — account dump at best | ✓ JSON · Markdown · text |
| Edit & correct it | Limited | ✓ Open, lock, merge, delete |
| Used to train their model | Often (opt-out) | ✓ Never |
| If you stop paying | Gone or frozen | ✓ You keep it |
| If the company disappears | Gone | ✓ Still yours, still readable |
| Works with other providers | No — locked in | ✓ Any provider |
| Cost | Recurring subscription | One-time |
What "you own it" concretely means
- It's a file, not a database row. Your memory lives in Memrith's folder on your own machine —
~/Library/Application Support/Memrith/on a Mac — not in an account on someone's server. - It's readable and exportable, any time. Export the whole thing as JSON, Markdown, or plain text whenever you want — no permission, no "request your data" form, no waiting.
- It's editable. Open any memory and correct it, lock it, merge it, or delete it. Your understanding is the source of truth — not a model's guess you can't reach.
- It's never training data. Never used to train Memrith, never sold. Your AI provider only sees the specific messages you send it, using your own key.
- It outlives the app. One-time purchase, documented format. If you stop using Memrith — or Memrith stops existing — the memory leaves with you. We wrote down exactly what happens if the company ever disappears.
Why ownership matters more as AI memory becomes common
Every AI is bolting on memory now. It's easy to read that as the ground shifting under a memory product. It's the opposite. When memory is everywhere, "does it remember?" stops being the question — and three sharper ones take its place:
- Whose memory is it? Yours, or theirs to rent back to you?
- Is it being trained on? Quietly improving someone's model, or just yours?
- Can you keep it? When you switch tools, cancel, or the vendor pivots — does it come with you, or vanish?
Rented memory answers all three badly, by design — the lock-in is the business model. Owned memory is the only honest answer, and it gets more valuable every time another vendor ships a memory feature you can't take with you. The commoditization of AI memory isn't Memrith's problem. It's the reason Memrith exists.
The honest version: free, rented memory (ChatGPT, Claude) is genuinely fine if "it just works while I keep paying" is all you want — and you don't mind that it's theirs. Memrith is for the case where you'd rather own the thing you spend years building. That's a real trade-off, and the BYOK setup is a few minutes of work (walkthrough here). The reason to accept it is everything above.
Questions about owning your memory
Does Memrith train on my data?
No. Your memory is never used to train any model, and it is never sold. It stays on your machine. Your chosen AI provider only ever sees the content of the specific messages you send it — you bring your own key and the calls go directly from your device to the provider.
What happens to my memory if I stop paying?
Nothing — you keep it. Memrith is a one-time purchase, so there is no subscription to cancel. Your memory is a local file you own; if a license ever lapses, your data stays exactly where it is and remains exportable. AI features simply pause until a license is active again.
What happens to my memory if Memrith shuts down?
It is yours. Your memory lives on your machine in a documented, exportable format that is readable without Memrith. If the company ever stopped existing, the memory you built leaves with you. We wrote a full, plain-English exit plan on the "If Memrith shuts down" page.
Can I export everything?
Yes. You can export your entire memory as structured JSON, Markdown, or plain text at any time. Migration is a guarantee, not an afterthought — the understanding you accumulate is portable to any AI.
Where is my memory stored?
Locally, on your own machine — in Memrith's application-support folder. Nothing lives on a Memrith server; there is no Memrith cloud holding your memory.
Is my memory private?
Yes. It never touches a Memrith server. The only content that leaves your device is what you choose to send to your AI provider in a given message, sent directly using your own API key — and none of the supported providers use API-submitted data for training by default. (Memrith also makes routine license and app-update checks, but those carry nothing about you.)