Absolute magnitude of all publicly known z > 6.3 quasars. J0038–1527, with ﹩{M}_{1450,{AB}}﹩ = −27.10, is the most luminous z > 6.6 quasar known to date. The next-highest redshift quasar (PSO323+12 at z = 6.588) with comparable luminosity is highlighted by a large blue circle. Two previously known z > 7 quasars are denoted by squares. The magenta error bar shows the typical errors on ﹩{M}_{1450,{AB}}﹩ of publicly known quasars. The cyan dashed line mark the position of z = 6.3.