begin{table}[h]
begin{center}
    begin{tabular}{lcccc}
        hline
        Model & multicolumn{1}{m{2.5cm}}{Something Before XYZ} & multicolumn{1}{m{2.5cm}}{Something After XYZ} &  multicolumn{1}{m{2.5cm}}{Ratio (Before/After)} & multicolumn{1}{m{2.5cm}}{Difference (Before-After)}\
        hline
        textbf{Model 1}  & 0,707464 & 0,665557 & 1,062964 & 0,041906 \
end{center}
end{table}

documentclass[11pt]{article}
usepackage{makecell, booktabs}
renewcommand{theadfont}{normalsize}

begin{document}

begin{table}[h]
centering
    begin{tabular}{lcccc}
        toprule
        Model & thead{Something\ Before XYZ} & thead{Something\ After XYZ} & thead{Ratio\ (Before/After)} &
        thead{Difference\ (Before-After)}\
        midrule
        textbf{Model 1} & 0,707464 & 0,665557 & 1,062964 & 0,041906
    end{tabular}
end{table}

end{document}