The proposed export controls do add some categories where export is completely prohibited. For example, sandbox detection. While the provisions specifically for AI models are generous enough, it's still possible that they trigger some other prohibition by being too capable. The statement about encouraging open source only applies to cases where export is merely restricted, not prohibited, and even then companies need to report their intention to export in advance, in principle giving the government the opportunity to deny them an export license.

So they're changing some things.