In this section three applications of Stochastic-GASCI and Stochastic-GASSCF are presented, that show how GAS in its stochastic form can be utilized for modeling the electronic structure of a variety of chemical systems. The first example is a stack of five benzene molecules, which illustrates how a limited number of interspace excitations in GASSCF already recovers the Full CI energy if the main correlation effects happen inside each GAS space. The second example uses Stochastic-GASCI to perform a very large uncontracted -MRCI calculation for a Fe(II)-porphyrin model system, with a (32, 34) active space as reference wave function, and correlating a total of 96 electrons and 159 orbitals. This example demonstrates how the new method can be efficiently used to account for dynamic correlation in a systematic way. As a last example, we use Stochastic-GASCI to investigate the spin ladder of an all-ferric Fe (III) 4