AI-native MBSE software for early systems engineering.
Cairn turns rough physical-system ideas into structured, traceable models.
Chat vanishes. The model stays.
Every other ai tool hands you a transcript. When the window closes, the structure goes with it. Cairn keeps it — as an inspectable, editable engineering model.
You type rough. Cairn picks up structure.
A brief becomes structure.
The ai interview surfaces subsystems, components, and interfaces as explicit, editable nodes — each with an ID that survives every round of refinement.
One model. Twelve lenses.
Every view below is the same underlying model, filtered differently. No context switch. No lossy round-trip. Twelve analytical windows onto a single source of truth.
Real engineering work. Not just text.
2D concept renders. 3D mesh assets. Monte Carlo simulation. All tied to the same structured model — so every artifact stays traceable back to a component, a requirement, a decision.
ai proposes. You commit.
Structural changes arrive as reviewable ChangeSets — one decision at a time. Accept and the model updates instantly. Skip and nothing changes. The model is never edited out from under you.
Every requirement, traced to its verification.
Pick any requirement. Cairn shows you which component implements it, how it's verified, and what the results say. Live, queryable, never out of date — because it's the model itself.
The model is the artifact,
not the conversation.
AI should contribute structure to a persistent, inspectable engineering model — not generate disposable text that vanishes when the chat window closes. Every node, interface, and requirement in Cairn is explicit, traceable, and yours to edit.
What are you building?
Describe the system in plain English. Rough is fine — Cairn refines it from here.