  An improved version of the Cascade-Exciton Model (CEM) of nuclear reactions
contained in the code CEM2k and the Los Alamos version of the Quark-Gluon
String Model (LAQGSM) are merged with the well-known sequential-binary-decay
model GEMINI by Charity. We present some results on proton-induced
fragmentation, fission-product yields and on particle spectra predicted by
these extended versions of CEM2k and LAQGSM. We show that merging CEM2k and
LAQGSM with GEMINI allows us to describe many fission and fragmentation
reactions in addition to the spallation and evaporation reactions which are
already described well by these codes. Nevertheless, the current version of
GEMINI we use does not provide a completely satisfactory description of some
complex-particle spectra, fragment emission, and spallation yields for some
reactions, and is not yet a universal tool for applications. Our results show
that GEMINI contains a powerful model to describe
evaporation/fission/fragmentation reactions and often provides better results
when compared to other models, especially for emission of heavy fragments from
reactions on medium-heavy nuclei (where most other models simply fail), but it
must be further extended and improved in order to properly describe arbitrary
reactions.
