Here we demonstrate instantaneous (without any external energy) generation of highly pure hydrogen using Gadolinium Telluride (GdTe) crystal from water splitting (Figure ). The GdTe is produced by a simple and easily scalable induction melting (see Method section in supplementary material). The catalyst is recyclable without loss of any activity. Post reaction analysis of catalysis confirms the formation of non-uniform oxide layers (Gd2O3) which assists the reaction. Theoretical calculations indicate that the charge transfer from Te to Gd enhances the chemical activity which results in ultralow overpotential for instantaneous hydrogen generation.