AB₁₄₅₀ magnitude vs. observed‐frame, Galactic absorption–corrected 0.5–2.0 keV flux for AGNs at z > 4 (adapted from Kaspi, Brandt, & Schneider 2000 and Brandt et al. 2001), showing X‐ray detected radio‐quiet AGNs (circles), X‐ray detected radio‐loud blazars (stars), the X‐ray upper limits (arrows), and the α_ox = −1.50 locus (dotted line) for z = 4.424 (assuming an optical continuum slope of α_o = −0.79 and an X‐ray power‐law photon index of Γ = 2). We have labeled VLA J123642.09+621331.4; provided its likely redshift of z = 4.424 is correct, it is both the X‐ray faintest and optically faintest z > 4 AGN detected in X‐rays. Despite its faintness, its value of α_ox is similar to that of much brighter AGNs. We have also labeled the notable z > 4 AGN RX J1052+5719 (z = 4.45; Schneider et al. 1998) and SDSS 1044−0125 (z = 5.80; Fan et al. 2000; Brandt et al. 2001).