[en] The investigations and comparative analysis of the magnetization processes for Gd₃Ni and Gd₃Co single-crystal compounds are presented. The possible magnetic structures for both compounds are proposed and the features of the field-induced metamagnetic transitions are discussed on the basis of the possible magnetic structures. The anomalous behavior of the Gd₃Ni compound observed above the magnetic ordering temperature is very likely caused by the appearance of the nickel atoms magnetic moment and field-induced magnetic ordering