This is the English reading version of the Dutch news item GPT-6 Astra bouwt een robotarm in SolidWorks met één opdracht.
This video by MecAgent shows how GPT-6 Astra builds a robot arm in SolidWorks 2026. One prompt, and the agent models eleven parts plus the assembly around them.
MecAgent is a separate program next to your CAD software. You keep your own SolidWorks session open, give one prompt, and the agent draws sketch by sketch and puts the features into your feature tree. You can take over at any moment, and what you get back is an ordinary SolidWorks file you carry on editing yourself. There is a free plan to try it: mecagent.com.
The figures from this run: one prompt, 11 parts, 1 main assembly, 35 minutes. The model is built parametrically with a feature tree of its own and is fully editable. The assembly rotates correctly around the axes meant for it. What is not right yet are the sketches the features are built from: those are not fully constrained. MecAgent says so itself: this is still far removed from a manufacturable product.
My verdict: this looks very good, and if you are already in the SolidWorks ecosystem it is immediately useful: the agent works in your own files, with your own feature tree. As soon as you start vibecadding you barely use SolidWorks itself, and because all of it is not developed far enough yet you as a user still have to steer a lot by hand. For vibecadding the emphasis should therefore lie more on the AI model than on the CAD package: that model determines the result much more than the program underneath, and then an expensive package quickly becomes overkill for this purpose.
Which CAD program suits your work, and which AI model for what task: that is on Which CAD program? and Which AI model?. Keep an eye on this site for updates and tests. I keep following these connections and publish here what works in practice.