MPEJ Volume 8, No. 5, 12 pp. Received: Sep 5, 2002. Revised: Nov 12, 2002. Accepted: Nov 13, 2002. M. Fradon, P. Heinrich On the free energy of a Gaussian disordered mean field model ABSTRACT: We study the limit of the quenched free energy of a disordered system derived from the Sherrington-Kirpatrick model where the usual $\pm 1$ spins are replaced with Gaussian ones and influenced by an external field. Convergence rates are also given and their optimality discussed. http://www.maia.ub.es/mpej/Vol/8/5.ps http://www.ma.utexas.edu/mpej/Vol/8/5.ps http://mpej.unige.ch/mpej/Vol/8/5.ps