Black hole mass versus stellar mass as estimated from observations. Shown is the bias-corrected relation at z​ = ​4 − 7 as derived by Pacucci et al. (2023) (red shading, ±1σ scatter). It is based on the data from JWST marked by the symbols (JADES, CEERS and GA-NIFS Maiolino et al. 2024b; Harikane et al. 2023; Übler et al. 2023). Also shown are data at z​ = ​1 − 3 (Mezcua et al. 2024). The high-z relation is compared to the local relation by Reines & Volonteri (2015) (green shading). The typical values of f_bh at z​ = ​4 − 7 are higher than the local relation by > 3σ, a factor of 10 − 100.