Top quark pair production cross-section measurements and measurements of $t\bar{t}+X$ with the ATLAS and CMS detectors

We present measurements of the inclusive and differential top-quark pair production cross sections in proton-proton collisions with the ATLAS and CMS detector at the LHC. Measurements have been performed at a center of mass energy of 8 TeV and 13 TeV. The inclusive measurements reach high precision and are compared to the best available theoretical calculations. Differential measurements of the kinematic properties of top quark pair production are also discussed. The production of top-quark pairs in association with W and Z bosons is also presented. These processes are important backgrounds to searches for new physics and are all compared to the best available theoretical calculations.