How do you find a thought from 3 weeks ago?

If you run several long projects at once, the reasoning behind each decision lives in one head and gets written down nowhere. Corpus is where it goes — and after a couple of weeks it starts answering the questions you would otherwise re-derive from scratch.

A knowledge map of one product manager’s brain: named nodes for people, projects, documents and places, joined by lines showing which ones come up together. Clusters form around Dana Cho, Priya Raman and Marcus Webb, with roads running out to Annual plan paywall stall, Onboarding flow and Activation. — Your Corpus brain in a couple weeks.

How it works

Say it. Ask for it later.

That is the entire loop. There is no setup step, no workspace to configure, and nothing to maintain — which is the point, because every system that asks you to maintain it eventually gets abandoned.

01
Say it
Speak or type whatever is in your head — a half-formed idea, why you ruled something out, what someone said in a hallway. No formatting, no folders, no tags. You never file anything.
02
Ask for it later
Ask a question and Corpus answers from what you actually said, weeks ago, in your own words. It shows you which memories it used, so you can tell the difference between remembering and guessing.
03
Or let it come back to you
Tell it to bring something up later and it will, by email, at the time you asked for.

What it gives back

Ask it something you told it a month ago.

How do I use Corpus?

You just voice dump what’s in your head. Never organize it. Ask for it back any time, no scavenger hunt necessary.

That sounds easy, but when does it pay off?

Use Corpus for a few days and you’ll have a more detailed journal than you ever would’ve written. Use it for a few weeks and you’ll have a brain you can ask anything!

OK, let’s try it! Can you tell me why we dropped the annual plan from onboarding?

You cut it in April. Two of the three users you interviewed stalled at the paywall on the yearly price. At the time you flagged that you weren’t sure it would hold at higher ACV, and that assumption hasn’t been revisited since.

Ownership

A brain you can take with you.

Everything you save exports as plain Markdown — one page per topic, your captures verbatim, the links between them intact. It opens in Obsidian, in Notion, or in a text editor thirty years from now. No proprietary format, no export queue, no plan required.

Where this is going: the same brain, readable by whichever model you prefer to think with. Your memory should not be a feature of somebody else’s assistant.

The part most companies leave out

While Corpus is running, your text is processed on our servers. That means a warrant served on us reaches what we hold, and no amount of marketing language changes it.

What we can promise instead: we do not sell your corpus, we do not train models on it, and we never hold it hostage. Model providers see your text on paid API terms that forbid training on it — not the consumer terms that permit it.

Pricing

Free while it’s in beta.

Later, asking your brain questions becomes a subscription. That is the part that costs real money to run, and charging for it is what keeps the rest of this honest — there is no version of this product where the business depends on doing something else with your corpus.

Reading and exporting everything you have saved stays free, permanently. What you wrote is yours whether or not you are paying us.

Start talking to it today. Ask it something in two weeks.

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