Starting on July 31st, it seems like the Recraft crisp upscale is suddenly producing result images that are much larger in file size than previously. This is when utilized through the API. I'm currently utilizing through the API with fal and replicate, and both saw the same issue. So it's most likely a Recraft API change that was made.

Previously, my results would be a few megabytes, but since that change, I am often seeing 45 megabyte result images.