Vacuum fine tuning and empirical estimations of masses of the top-quark and Higgs boson

The fine-tuning principles are analyzed in search for predictions of top-quark and Higgs-boson masses. The modification of Veltman condition based on the compensation between fermion and boson vacuum energies within the Standard Model multi-plets is proposed. It is supplied with the stability under rescal-ing and with the requirement of minimum for the physical v. e. v. for the Higgs field (zero anomalous dimension). Their joint solution for top-quark and Higgs-boson couplings exists for the cutoff Λ ≈ 2 . 3 · 10 13 GeV that yields the low-energy values m t = 151 ± 4 GeV ; m H = 195 ± 7 GeV .