Posterior distributions of retrieved molecular abundances. Top: posteriors obtained with JWST NIRSpec PRISM 3–5 μm data reduced by the Tiberius and Eureka pipelines (The JWST Transiting Exoplanet Community Early Release Science Team et al. 2022). Bottom: posteriors with the same two JWST spectra combined with HST/WFC3 data (Wakeford et al. 2018). From left to right, the panels show the posteriors for log-mixing ratios of H₂O, CO₂, SO₂, CO, and H₂S. Horizontal error bars denote the retrieved median and 1σ interval for the posterior of corresponding color.