BusbySim

Turn a potential idea into a SysML v2 model you can see and develop, right in ChatGPT.

Describe a system, such as an aircraft architecture, a drone or an EV powertrain. ChatGPT drafts the SysML v2 model using BusbySim's syntax guide, then BusbySim validates the syntax. ChatGPT corrects any errors it reports until the model is valid. BusbySim then shows the model in its editor and diagram inside the chat. There you can pan, zoom and edit the SysML, and the diagram updates as you type. You can also work entirely in the diagram, using the right click to add, delete or edit elements.

To keep working on your model, open it in BusbySim as a project. You sign in or create a free account first. Within BusbySim you can link requirements, complete functional analysis, or output FHA, FMEA, fault trees and safety reports.

No login is needed in ChatGPT, and the plugin can't see your saved BusbySim projects. The syntax check covers the BusbySim specific subset of SysML v2 syntax only. It doesn't check what the model means or prove the design is safe.