ChatGPT Plugins does not publish install or usage counts, so PluginStats tracks BusbySim's listing placement instead.
It currently appears at position #1056 in the marketplace's popularity-sorted listing.
Category positions: #347 in Creativity
About 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.
Description from the ChatGPT Plugins listing.
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Filled points are observed values; hollow points come from Internet Archive snapshots of the listing page. Dashed segments span periods with no observations — values between points are not interpolated.
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OpenAI does not publish install counts or ratings for ChatGPT plugins. PluginStats records listing details and each plugin's placement in the directory over time: overall position follows the Popular list, then New & Noteworthy, then each category in directory order.
Listing: https://chatgpt.com/plugins/plugin_asdk_app_6ab8e8334a788191bf9381f5a75ef4ab. First seen Oct 16, 2026; last successful collection Oct 19, 2026. See the methodology.