The magnetic torque of a quasi two-dimensional superconductor λ-(BETS) 2GaCl 4 ( T c=5.5 K) is measured at T>1.5 K and H<8 kOe as a function of the angle between the magnetic field and the conducting plane. The anisotropy in the superconducting vortex state is discussed in comparison with BEDT-TTF molecule based organic superconductors and Bi-based oxide superconductors.