I have some Syntex models trained and functioning in my SharePoint environment.
Now I would like to use one of the Syntex models in a Power App to read scanned data. It can already read data uploaded to SharePoint, but now I would like to make it mobile.
I do not see any of the models under AI Builder:

Should I? Am I missing a step? Can I use Syntex AI models in Power Apps?
Now if I pick any of the OOTB models, marked as Premium, and use it in an App,

I get an error message, saying

"You don't have the rights to this model. Ask the owner to share it with you"
I am the owner of the app. I just created it. Did I miss the step? Or is it because of licensing?
For transparency, I have currently the following licenses assigned:
Microsoft 365 Business Premium
SharePoint Syntex
Microsoft Power Automate Free
Microsoft Power Apps Plan 2 Trial
Apologies for the German in the screenshots. I thought they would be helpful in explaining the scenario anyway.