  We study the connection between inflation and supersymmetry breaking in the
context of an O'Raifeartaigh model which can account for both hybrid inflation
and a true vacuum where supersymmetry is spontaneously broken. For a weakly
coupled inflaton field, the dynamics during the inflationary phase can be
determined by the supersymmetry breaking scale $M_S\sim 10^{10}$ GeV, even if
$H_I >> m_{3/2}$. The spectrum of density fluctuations is then almost scale
invariant, with a spectral index $n-1={\cal O}(M_G^2/M_P^2)$. The mass
parameter $M_G$ of the O'Raifeartaigh model is determined by the COBE
normalization for the cosmic microwave background to be the grand unification
scale, $M_G \sim 10^{16}$ GeV.
