Directly, generating higher res stuff requires way more compute. But there are plenty of AI upscalers out there, some better, some worse. These are also built into Photoshop now. The difference between an AI image that is easy to spot and hard to spot is using good models. The difference between an AI image that is hard to spot and nearly impossible to spot is another 20 min of work in post.
Most of these images have really shitty resolution as well. Can’t they generate higher res stuff or would inconsistencies otherwise be more obvious?
Directly, generating higher res stuff requires way more compute. But there are plenty of AI upscalers out there, some better, some worse. These are also built into Photoshop now. The difference between an AI image that is easy to spot and hard to spot is using good models. The difference between an AI image that is hard to spot and nearly impossible to spot is another 20 min of work in post.