Parameter estimates for age, distance modulus and extinction (rows, Y axis) of the OCs determined with a [Fe/H] prior based on Gaia XP metallicity compared to those estimates reported by the studies of CG20, HR23, and Cavallo et al. (2024) on the X axis. The same colour-coding scheme applies as in Fig. 6. The legend in the upper corner of the figures shows the median absolute difference and the RMSD of the respective parameter. The OCs with three or fewer RGB stars are marked with an X symbol.