(This sort of question, and the Grok sexual abuse, is why I'd like to see mandatory invisible watermarks on generated images/video)
Most people serious about this stuff usually have their own pipelines.
These are open weight models, so you can fine tune them on Lego content… But presumably they already have enough training data since they were made by Chinese companies who don’t give a shit about Western IP rights.
I'd like to know what self hosted models they've been using, if any, and who provided them, trained on Lego IP.