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The collision system and multiplicity dependence of chemical freeze-outtemperature ($T_{\rm ch}$) and strangeness saturation factor ($\gamma_{s}$) areobtained by studying the particle ratios at the Large Hadron Collider (LHC)energies. Here, we consider the new results in pp at 13 TeV, p+Pb at$\sqrt{s_{\rm NN}}$ = 5.02 TeV, Xe+Xe at $\sqrt{s_{\rm NN}}$ = 5.44 TeV andPb+Pb at $\sqrt{s_{\rm NN}}$ = 5.02 TeV along with the earlier results in pp at$\sqrt{s}$ = 7 TeV and Pb+Pb at $\sqrt{s_{\rm NN}}$ = 2.76 TeV. A statisticalthermal model is used to extract the chemical freeze-out parameters indifferent multiplicity classes. To understand the particle production fromsmall to large collision systems two ensembles namely, canonical and grandcanonical have been considered in this study. A clear observation ofmultiplicity dependence of $T_{\rm ch}$ and $\gamma_{s}$ is observed. Thevalues obtained in high-multiplicity pp collisions are found to be similar tothe peripheral Pb+Pb collisions. A final state midrapidity charged particlemultiplicity density of around 20-30 appears to be a threshold below which, thechemical freeze-out temperature is lower than the kinetic freeze-outtemperature.

System size and Multiplicity dependence of Chemical freeze-out parameters at the Large Hadron Collider Energies