are common variations.

Let's first talk about whats **not** checkpoint variant,
	
Checkpoint variants do not include different serialization formats (such as safetensors) as weights in different serialization formats are
identical to the weights of the “main” checkpoint, just loaded in a different framework.
Also variants do not correspond to different model structures, e.g. stable-diffusion-v1-5 is not a variant of stable-diffusion-2-0 since 