  We present calculations of the chemical freeze-out temperature (T_ch) based
on particle yields from STAR and ALICE measured at collision energies ranging
from sqrt{s_{NN}} = 11.5 GeV to 5.02 TeV. Employing the Grand Canonical
Ensemble approach using the Thermal-FIST Hadron Resonance Gas model package, we
show evidence for a flavour-dependent chemical freeze-out in the crossover
region of the QCD phase diagram. At a vanishing baryochemical potential, we
calculate light and strange flavour freeze-out temperatures T_L = 150.2 +- 2.6
MeV and T_S = 165.1 +- 2.7 MeV, respectively.
