Dall-E Beta image resolution

I have been on the waiting list for a few weeks and just learned about Dall-E entering the beta stage. I’ve read articles stating that resolution was improved with the beta, but I found no information about the actual output size.

The fact that you retain full rights to your creations and may even use them commercially sounds exciting. But for applications like printing the image resolution often is the limiting factor. Can anyone shed light on this, please?