Comparing individual and combined spectral retrievals of WISE 1738 across different wavelength regions. The corner plot shows 1D and 2D marginal posterior distributions obtained for the WFC3, GNIRS, and MIRI spectrum along with the combined WFC3+GNIRS+MIRI spectra. The top right figure illustrates the posterior distribution of the P – T profile of the combined retrieval, while also highlighting the 99.7% credible intervals of the three independent retrievals.