Nest posteriors retrieval from TauREx assuming a constant H₂ abundance in the atmosphere. Shown are the ∇⁺T (left) and GCM cases (right), which assume, respectively, no water dissociation (top) and water dissociation (bottom). We retrieved five free parameters, which are H₂O, CO abundances in log10(VMR), clouds pressure in bar, the temperature in Kelvin, and the planetary radius in Jupiter’s radius. The molecular weight is derived from these parameters.