> The AI Act Article 53 requires anyone who places a general-purpose model on the EU market to keep technical documentation, give information to downstream developers, adopt a copyright compliance policy, and draw up and make publicly available a sufficiently detailed summary about the content used for training the model.

Sounds like a pretty good reason. Maybe there should have be exemptions for open-weight models?

"Giving information to downstream developers" and a "copyright compliance policy" could get pretty expensive quickly.