Yes, I am using "weights" and "model" more or less interchangeably, but cellpose 3 did have what they referred to as different "models" which had semantic differences in terms of what they expected as inputs (cyto, cyto2, cyto3, nuclei, etc.) but I think they may have released updated weights for each of those over time. That process might be irrelevant with cpsam though? Not totally sure.