Polyamide composites reinforced with glass fibers (PCRGF), fabricated through different manufacturing processes, are increasingly utilized in diverse commercial applications. Recently, these composites have garnered increased research attention because of their outstanding mechanical properties. This present study focuses on predicting the mechanical performance of the composite consisting of a recycled polyamide 6 resin (rPA6) reinforced by glass fiber using analytical models. In this research, the effective elastic moduli (E), the tensile strengths (YS) and the elongations at break (A) of glass fiber reinforced recycled polyamide 6 composite (GF-rPA6) are predicted by using the rule of mixture (ROM) model, inverse rule of mixture (IROM) model, Hirsch model and Halpin-Tsai equations. The obtained results are compared with experimental data. It was shown that the used analytical models demonstrate varying degrees of relevance, with each model being more appropriate for specific scenarios. Furthermore, the phenomenon of fiber reorientation, along with fiber content, emerges as a crucial factor influencing the applicability of these models. Additionally, it appears that the accuracy of the models indicates significant variation depending on whether the material is subjected to stress within its elastic range or experiences large deformations.