How do you find a thought from 3 weeks ago?
Most people dig for a bit, fail, and resign themselves to either flying blind or writing better notes next time. With Corpus, you don’t have to do either.
How it works
Just speak. Corpus organizes your brain for you.
You have notes. You have long-running projects.
What you did makes it into notes… if there’s time. But the why behind each decision rarely leaves your head. Corpus is where that reasoning goes. Speak to save your stream of consciousness, messy reasoning and all.
01
Brain dump
Don’t think, just say the thought out loud and move on. Walking out of a call, between meetings, mid-project. No folders, no tags, nothing to file. It’s safe on Corpus.
- ◉ 0:19Jul 28“Watched new user Priya set up her first project. She stalled on the workspace step for four minutes, then gave up and messaged me…”
- ◉ 0:11Aug 4“Marcus wants to keep the workspace step early in the flow. Says groups need one immediately. Not sure that holds for anyone working solo…”
- ◉ 0:24Aug 11“Decided. Workspace creation comes out of signup and moves to the first invite. Six of eight testers never made a second one…”
- ◉ 0:13Aug 19“Read last quarter’s support tickets. Most common by far is asking how to rename a workspace…”
67 seconds of talking, across three weeks.
02
Organized automatically
Every person, project, and decision automatically gets its own entity, and Corpus writes the contents of your brain dump to all of them at once. A single fact lands on any entity it is relevant to instead of being stuck only where you saved it.
Your brain map
- Jul 28Priya stalled on the workspace step for four minutes
- Aug 4Marcus: groups need a workspace immediately
- Aug 11Workspace creation cut, moved to first invite
- Aug 19Top support ticket is renaming a workspace
Click any point on the map to see every fact you’ve saved about it. A fact might be relevant to two entities, so you’ll find it on both. Related entities are connected on Corpus, just like in your brain.
03
Remember any one piece. Corpus connects the dots.
Just a fragment is enough. Someone pushed back about something, but it’s stuck on the tip of your tongue. Corpus searches connections like a person, returns the decision, the reasoning behind it, and remembers what is still unresolved.
We took something out of the onboarding recently, and I remember someone disagreeing. What did we cut, and why?
You cut the workspace step out of signup on August 11, and moved it to the first time someone invites a teammate. The reason was evidence: six of eight testers never created a second workspace, so the step was solving a problem most people did not have.
The disagreement was Marcus, who argued groups need a workspace immediately. What outweighed it: you had watched Priya stall on that exact step for four minutes before giving up, and last quarter’s most common support ticket was people trying to rename a workspace they had been made to create.
Still unresolved: you weren’t sure the argument holds for anyone working solo, and nothing since testing has revisited it.
Answered from 4 memories · Jul 28 – Aug 19
Ownership
Your brain is yours. Portable. Forever.
Corpus doesn’t hold your data hostage. Your data is yours, and it’s also formatted to be usable anywhere else you want to bring it.
Every single thing you save can be exported as universal Markdown. One page per topic, your captures verbatim, and the links between them. Markdown can be opened in Obsidian, Notion, your favorite LLM, or likely in any text editor thirty years from now. No proprietary format, no export queue, no payment required.
When you invest time in building your brain, you should be able to carry it with you, no matter who makes the latest and greatest thinking partner.
The full picture
Corpus processes your text on our servers and via large language models, in both cases with no training allowed on it. This is how most AI apps work today, because the best models require more compute than is available on your device. It’s as user-controlled as is practically possible.
We never sell or otherwise share your data, and we believe that you own it, even if Corpus is entrusted as its steward.
Pricing
Free while in alpha, then $20/mo to use AI features.
Viewing and exporting your data is always free. It’s yours to keep.
The intelligence that runs your Corpus brain, adding new info, building your brain map, and retrieving facts is $20 per month. Charging for the intelligence that makes Corpus is what allows us to keep your data yours and allows you to change to another service any time.
Frequently asked questions
- Who is Corpus for?
One question sorts it: if you took two weeks off, would you come back to a new set of problems or the same ones where you left them?
Corpus is built for the second answer. Long projects where today’s decision depends on reasoning from weeks ago is where Corpus shines. Your brain naturally forgets why. Corpus picks up the slack.
- When can I talk to Corpus?
Anywhere and anytime you have a thought worth remembering. Walking out of a call, waiting for a meeting to start, the middle of the night, or when you’re halfway through working something else.
Corpus runs in the browser on a laptop or a phone, so a brain dump is never more than a tab away. The moment to capture something is the moment you think it. Don’t wait until you’re back at your desk and free… that thought might be gone. Corpus safely remembers the thought so you can get back to whatever you were doing.
- What’s a brain dump?
Speaking whatever is on your mind to get it off your mind. Ramble freely. Ignore organization. Don’t bother with a title, folder, tags, or a decision about where it belongs. Just say it.
- What does Corpus do when I brain dump?
Corpus sorts through everything you save to extract the people, places, problems, decisions, and other entities in your memory. Then it makes a page for each entity, populated with every fact you’ve saved about it. Corpus connects all your entities into a brain map, so that you can see how information in your brain is connected.
- Is there an iPhone app?
No app, mobile browser only so far!
For now, you can add Corpus to your phone’s home screen by following these instructions.
- What does the Mac app do?
The Corpus Mac app makes brain dumping as easy as possible. To brain dump with the Mac app, you just press a hotkey and start speaking from anywhere on your computer. All of the information saved, none of the interruption.
- Can I just use ChatGPT or Claude memory?
For some of what you need to remember, this might work great.
One limit is what ChatGPT and Claude see: those memories are composed of only the things you typed into that chat. You only ever type what you needed to say to get an answer, so most of what you know never gets saved.
Another limit is that those memories are a profile of vibes rather than an objective record. Each is a synthesized description of you based on background patterns, not the specific thing you said on a Tuesday in July, to a specific person, and the specific reason you said it. Corpus keeps your facts straight, exactly as you said them.
- How is this different from Notion or Obsidian?
Backlinks, tags, connections, and folders are great, but they turn you into a librarian of your own ideas. Every one of these organizational devices becomes your job every time you save something, and this means that not very much tends to get saved. With Corpus, you file nothing, the structure is built for you, and no idea is stuck in a single folder, note, or base.
- I use Granola already, how does Corpus help?
Granola captures what was said in the room. Corpus captures the color that wasn’t. No recorder can capture what you wanted to say and did not, why you personally conceded a point, an idea you have for next time, or an observation about how to be more effective next time you meet with this person.
Granola is the public record, Corpus is the record of your thoughts.
- What if my projects are already in a team Wiki?
Teams are made up of individuals, and individuals have individual thoughts. Not every idea is finished and ready for your boss and colleagues. Corpus is the home for your personal ideas, pattern recognition across jobs, or unvarnished read on a situation. Your team has thoughts, goals, and ideas. So do you.
- How is Corpus better than my trusty notebook?
If your notebook follows you everywhere, so will Corpus. Corpus is a better steward of your thoughts because:
1. Talking is faster than writing. With limited time to save thoughts, more get saved if you can speak them.
2. No flipping through pages. Corpus has no pages to flip through or strand a thought. It organizes everything for you, connects your ideas, and all of them are available instantly via chat.