Work notes that end up in the right place
Stop losing work notes in chat history. Say «save this in the right place» and your AI files it under the client or project, for whichever AI you open next.
How it goes today
Every chat produces something worth keeping: a decision, a number, a next step. A week later it's buried in a conversation you can't find, in one of three AIs.
Your AIs share nothing with each other: every chat and every assistant starts from zero. Cobrain is the memory they all connect to, plain Markdown notes that Claude, ChatGPT, Claude Code or Cursor read and write.
How it works with Cobrain
- Organise the brain by client or project: one folder each.
- At the end of a session, say «save this in the right place». The AI picks the folder and writes the note.
- Next time, in any AI, start with «start a session on Acme»: it loads that folder first.
An example note
clients/acme/2026-10-13 - Call with the owner.md
- New shop opens 2 November.
- Wants a local campaign, 500 € a month.
- Next step: proposal by Friday.What you need
Free: up to 1,000 notes, every AI you want.
More cases
Agencies: every client's tone of voice, in every AI
Write each client's tone of voice once. Everyone in the agency, with Claude or ChatGPT, starts from the same rules, and a change is made in one note.
ReadWorkA new colleague who doesn't need everything explained twice
Share one folder with a new colleague on day one. Their own AI reads the client's rules, decisions and history, and you only answer what the notes don't cover.
ReadWorkHanding work over from Claude to ChatGPT, without copy and paste
One person builds a report with Claude, the next one finishes it with ChatGPT. The data and the reasoning sit in shared notes, so nothing has to be exported or explained.
ReadStart with a single note.
It is free and no card is needed. You sign in with a link sent by email, connect your AI and start building a memory that does not stay locked inside a chat.
