The current research employs a three-dimensional Williamson nanofluid flow model, investigating the behavior of a stretching sheet with the influence of the Cason parameter and hybrid carbon nanotubes. The governing equations are transformed into nonlinear coupled ordinary differential equations through appropriate similarity transformations and the consideration of physical phenomena. To solve these equations, a Python coding program, along with an open-source boundary value problem solver, is utilized. The obtained numerical results are validated against relevant literature results. These findings are then presented and analyzed using graphs and tables, focusing on thermos-physical parameters such as the thermal Peclet number.