SFMSs of the sample galaxies at z = 6. The upper and lower panels present the SFMSs constructed with SFR₁₀ and SFR₁₀₀, respectively, while the left and right panels show results obtained from the median posterior and the posterior with the minimum χ², respectively. The solid black line marks the best fit to the true SPHINX²⁰ data, and the solid coloured lines indicate best-fit relations derived with different SFH models in the attSNE_Z_F410M model. The best fit for the constant SFH model is excluded from the upper panels, as many galaxies return SFR₁₀ values of zero. The minimum χ² posterior more accurately reproduces the true SFMS from the simulation more closely, although it lies slightly below current high-z observations (Heintz et al. 2023; Rinaldi et al. 2022).