Comparison of the redshift distributions for different magnitude cuts between GALSBI-SPS (red lines), GALSBI (blue lines), and the photo-z estimates with EAZY (green line) and LEPHARE (orange line) of the observed galaxies in the COSMOS field. In the figure we report the GALSBI redshift distributions obtained from each posterior sample in Fischbacher et al. (2025a) and the GALSBI-SPS redshift distributions obtained from each bootstrap sample.