Performance of NN predictions with wavelength: Median fractional flux error (FFE) as a function of the wavelength for the autoencoders (left panel) and CNN (right panel). The shaded area shows the 16^th and 84^th percentiles of the distribution of the whole sample. The vertical shift is introduced to improve visualization. The black dotted lines show the zero point of each run. The shaded black vertical lines show the positions of the main emission lines in the wavelength range.