D_Δt distribution for GLEE (top) and LENSTRONOMY (bottom) for different mass models. The power-law (blue) and composite (red) model constraints are shown separately, as well as the combined constraint (purple and green, respectively) for each code. The GLEE results give equal weight to the power-law and composite models, while the LENSTRONOMY results give most of the weight to the power-law model based on the kinematics weighting. A flat prior in the range 0 ≤ D_Δt ≤ 4 Gpc is assumed.