Simulations of soot in an atmospheric turbulent jet flame and in high-pressure turbulent diesel jets are presented. A kinetic soot model and a semiempirical soot model are employed for predicting soot in the atmospheric jet flame. Consistent with results published in the literature, this work shows that the kinetic model predicts the location of the maximum soot volume fraction to lie considerably upstream of the measured maximum soot volume fraction. Furthermore, the radial spreading and axial penetration are lesser than in the measurements. The semiempirical model is able to predict the location of the maximum within 20%, but the lower radial spreading and axial penetration persist suggesting potential deficiencies in predicted soot oxidation. The semiempirical model is applied to simulate soot in diesel jets and shown to predict the measured location of the soot and effect of changes in operating conditions well.