The title mol-ecule, C(12)H(14)N(8)S(2), has point symmetry [Formula: see text] since it is situated on a crystallographic centre of symmetry. The 1-meth-yl/5-thio groups are in an anti-periplanar conformation. The dihedral angle between the benzene and tetra-zole rings is 84.33 (2)°. In the crystal, C-H⋯N hydrogen bonds link mol-ecules into ladder-like chains running along the b axis. There are also C-H⋯π inter-actions present in the crystal structure.