Phosphoros results on two simulated Euclid catalogs, EWS (top panels) and EDF (bottom panels), with true values plotted against the Phosphoros recovered ones. The black line is the 1:1 relation; the shaded area is the region beyond which a prediction is an outlier. In every plot, the four contours are the area containing 98%, 86%, 39% (corresponding to the 3σ, 2σ and 1σ levels for a 2D histogram) and 20% of the sample. For SFMS the true distribution is reported in red (dashed), the predicted one in blue (solid). The lines are the ODR best-fit to the (passive-removed) distribution. The reported metrics are NMAD (purple), the outlier fraction f_out (blue) and the bias (green) for the photometric redshifts and physical parameters, and the slope m, scatter σ and fraction of passive galaxies f_p for the SFMS, all defined in Sect. 3.6.