One private knowledge graph from all your tools, so any AI can reason across everything you know. On your device. On your terms.
Before you open a tab:
The auth model isn't approved, so #214, #221, #233 all wait on it. Decision sits in your Notion doc.
Spec in Notion. Issues in GitHub. Notes in Obsidian. Every answer means five tabs and a dozen searches, and no AI sees across any of it.
Celis changes that.
Scattered tools to one private graph, in three steps.
Link Notion, GitHub & Obsidian. Celis pulls your data back to your device, not someone else's cloud.
One private graph that resolves the same task, project, and person across every tool.
Ask anything across everything. Get a daily brief. Mark things done, with any model, cloud or local.
Celis opens your day with what matters, assembled from everything you know. Then you just ask.
The model isn't the hard part anymore. The context is. Celis ingests your messy data, links it across tools, and assembles the right context for every question.
Bad context in, useless answer out. Celis gives your AI the context it's missing.
Everything runs on your own device, by default and by design.
Local-first. Your graph lives on your machine, not our servers.
You choose the AI. Fast cloud or fully local. Never stored, never trained on.
Total transparency. See exactly what's sent, and where. Every time.
Open & auditable. Source-available. Don't trust us, read the code.
We literally can't see your data. That's the point.
| Notion AI / ChatGPT | Obsidian alone | Celis | |
|---|---|---|---|
| Sees across all your tools | ✕ | ✕ | |
| Your data stays local | ✕ | ✓ | |
| Choose any model (cloud/local) | ✕ | ⚠ | |
| Proactive daily brief | ✕ | ✕ | |
| Doesn't replace your tools | ✕ | — |
For years, your data made other people rich. Celis flips that. Your knowledge is yours to use, to think with, and one day, on your own terms, to profit from.
It starts here, on your device.
We're onboarding a small group of founders, builders, and teams who live across Notion, GitHub & Obsidian.
No spam. Early access, behind-the-scenes build logs, and a say in what we build next.
Celis connects once to Notion, GitHub, and Obsidian and pulls your data back to your device. It builds one private graph that resolves the same task, project, and person across tools. Then you ask anything, get a daily brief, and mark things done. Nothing leaves your device unless you choose to send it.
On your own device. Your graph lives with you, not our servers, and we can't see it. When you use a cloud model, Celis masks names and identifiers first and shows you exactly what's sent.
Yes. Celis is model-agnostic. It assembles the right context for every question and hands it to whatever model you pick: fast cloud or fully local. Per source, per question.
No. Notion, GitHub, and Obsidian stay where they are. Celis sits underneath as the context layer that lets one AI reason across all of them.
Yes, by design. Local-first by default, source-available so you can read the code, and total transparency on anything sent to a cloud model. Don't trust us, audit it.
You keep everything. Your graph is stored in an open format that doesn't depend on us, and the source is available, so it keeps working. We're independent and building this to last.