Comparison of labels between the HOTPAYNE estimates and high-resolution spectroscopic results for our reference stars. For all the dots in black, the spectra are collected from the ESO archive (Table3) and degraded to the LAMOST resolution for stellar label determination with HotPayne. For these stars, the literature labels are adopted from Przybilla et al. (2006, 2010), Nieva & Przybilla (2012), and Haucke et al. (2018). Open squares represent the SPB stars of Gebruers et al. (2021), which have LAMOST observational counterparts. The Gebruers et al. (2021) high-resolution spectroscopic labels of these SPB stars are derived using LTE-based model spectra. The HOTPAYNE estimates show good agreements with the literature values. For stars with T_eff > 25 000 K, the LTE-based estimation with HOTPAYNE underestimates the T_eff due to NLTE effects. Similarly, the log g for supergiants (log g < 2) are overestimated due to the differences between the LTE and NLTE modeling.