Top: eclipse spectrum of WASP-80 b. The black points with the 1-σ vertical error bars show the NIRISS/SOSS spectrum obtained with the supreme-SPOON reduction pipeline, and the blue points show the spectrum obtained with the additional reduction, shifted by 0.01 μm for clarity. The bins from the order 2 trace are the first 2 points of this spectrum, and the other bins come from the order 1 trace. The HST/WFC3 data points from B. Jacobs et al. (2023) are shown in orange, as well as the first part (2.42–2.81 μm) of the JWST/NIRCam spectrum from T. J. Bell et al. (2023), in pink, binned down to the NIRISS/SOSS resolution. Bottom: The difference in SOSS spectra between the supreme-SPOON and other pipeline is shown in dark blue, where the vertical error bars represent the maximum ones of the two reductions for each bin. The difference between the SOSS supreme-SPOON and NIRCam spectra is shown in dark pink, where the vertical error bars represent the square root of the sum of the squares of the individual error bars.