Open Brain captures everything you live — voice, notes, email, photos, health, the web — and Saarthi, your charioteer, turns it into a mind: beliefs with evidence, dossiers on what matters, and counsel at the exact moment you need it.
Every evening Saarthi reads your day and grows a world model: durable, evidence-cited beliefs about how you work, what you want, and where things stand. Then every brief, every coach, every answer reasons from that model.
"Prefers planning tomorrow the evening before, with at most three primary goals per day."
confidence 85%4 sources why? → trace to the exact memories"You've watched a fair bit while the proposal draft sits untouched. Twenty minutes on it now, before the 3pm call?"
goal coachlife coachfitness coachNo black box. A claim that cannot cite the memories it came from is discarded. Beliefs revise by supersession, never silent overwrite — the history is always walkable.
Your memory is not a feature of someone else's chatbot. It is a database you own, with locks Saarthi itself cannot pick.
Journals never enter the model, the briefs, the graph, or any AI surface. Private means private — enforced in the queries, not the prompts.
Memories, notes and attachments are AES-256 encrypted with your key. Locked notes refuse every reader — including the AI routes.
The daily thinking runs on your own hardware at $0. Cloud models are an opt-in switch, never a dependency.
One-click export of everything — memories, notes, goals — in open formats. Your brain is portable.
Capture and recall from the web app, the Android app, Telegram, the Chrome extension — and connect Claude, ChatGPT or Cursor to the same memory over MCP.