Comparison of the two escape models at 50 Myr in the orbital period-transit radius plane. In panels a, b, and c, the energy- and recombination-limited model is displayed while panel d displays the hydrodynamic model. In panel a, the colour code shows the ratio of the instantaneous escape rates predicted by the two models, Ṁ_hyd/Ṁ_enRR One notes how the hydrodynamic model predicts higher escape rates for the distant small planets, but lower ones for the close-in planets. Panel b shows the gravitational potential of the planets. Panels c and d colour code the restricted Jeans parameter Λ. On the right, no Λ ≲ 30 occur, as the excess envelope has already boiled-off. Grey points are planets that have lost the entire H and He envelope.