Mass-metallicity relation (MZR) for our full JWST sample. Filled circles represent individual galaxies presented in this work from JADES, whereas filled crosses are galaxies observed in the framework of the CEERS programme and compiled from Nakajima et al. (2023), with metallicity derived as detailed in Sect. 3.1. The star symbol reports the JADES/NIRSpec observations of GN-z11 (Bunker et al. 2023b, at z = 10.603), whereas ‘X’ symbols mark galaxies from the EROs as compiled from Curti et al. (2023) and Laseter et al. (2024). Large squared and diamond symbols mark the median values computed in bins of M_⋆ (full sample, in purple), and (M_⋆ z), as described in Table 2. An orthogonal linear regression fit to the median values in bins of M_⋆ for the different redshift sub-samples is shown by the purple (full sample), yellow (z = 3 − 6) and blue (z = 6 − 10) lines, respectively. We include a comparison with previous determinations of the MZR at lower redshifts from Curti et al. (2020b; SDSS at z ∼ 0.07), and Sanders et al. (2021; MOSDEF at z ∼ 2 − 3), as well as the best-fit of the low-mass end of the MZR at z ∼ 3 provided by Li et al. (2023) and based on JWST/NIRISS slitless spectroscopy. The MZR curves at z ∼ 2 − 3 have been scaled down by ∼0.1 dex to account for the systematics differences between the metallicity calibrations used in this work and the Bian et al. (2018) calibrations adopted in the original papers.