Comparison of the temperatures (top) and surface gravity (bottom) estimates from GSP-Phot and GSP-Spec. The GSP-Phot and GSP-Spec algorithms are calibrated to the literature values. We plot in grey the ∼3.2 million sources in Gaia DR3 with both astrophysical_parameters.teff_gspphot, astrophysical_parameters.teff_gspspec and astrophysical_parameters.logg_gspphot, logg_gspspec. The highlighted distribution corresponds to those with the first 13 values in flags_gspspec equal to zero (∼1 million sources). We indicate the identity lines and the identified divergence in log g between the modules. We note that the GSP-Spec recommended calibration of log g does not affect this comparison significantly.