Superconductivity is a critical enabling technology for magnetic confinement nuclear fusion. Different types of cables are under study in this field, with much effort in the scientific community focused on the use of high-temperature superconducting (HTS) cables, which enable the generation of more powerful magnetic fields. Numerous designs have been proposed and studied using various modeling software to predict the behavior of these cables under operational conditions. For LTS cables, various software programs (such as 4C, THEA, and VENECIA) can model both the electrical and thermohydraulic profiles. However, they are not recommended for the modeling of HTS cables for which the H4C code was introduced some years ago.