Sure, you have 2 options to get generated humans as 512ั 1024 px PNG files:
The whole pack of images includes 100,000 images, total of ~46GB;
The small pack includes 5,000 images, total of ~2GB.
Please reach us at work.with@generated.photos and provide more details on intended use of the models. Specify which pack you're interested in, and we'll share the PNG versions with you.