L_[OIII] versus SFR (top panel) and L_[OIII]/SFR versus gas-phase metallicity (bottom panel). The red circle and horizontal line (in top and bottom panels, respectively) mark the measurement for JADES-GS-z14-0. Gray circles are local dwarf galaxies, while green pentagons are z∼6−9 galaxies. The solid blue line shows the local relation by De Looze et al. (2014) for metal-poor galaxies, with the shaded area corresponding to the 1σ uncertainty. The blue dashed line illustrates the L_[OIII]−SFR relation for high-z galaxies by Harikane et al. (2020). Dotted and dashed gray lines illustrate the Cloudy models for different gas-phase metallicities and electron densities (Harikane et al. 2020; Jones et al. 2020).