  We study the production of (hyper-)nuclei and di-baryons in most central
heavy Ion collisions at energies of $E_{lab}=1-160 A$ GeV. In particular we are
interested in clusters produced from the hot and dense fireball. The formation
rate of strange and non-strange clusters is estimated by assuming thermal
production from the intermediate phase of the UrQMD-hydro hybrid model and
alternatively by the coalescence mechanism from a hadronic cascade model. Both
model types are compared in detail. For most energies we find that both
approaches agree in their predictions for the yields of the clusters. Only for
very low beam energies, and for di-baryons including $\Xi$'s, we observe
considerable differences. We also study the production of anti-matter clusters
up to top RHIC energies and show that the observation of anti-$^4He$ and even
anti-$^4_{\Lambda}He$ is feasible. We have found a considerable qualitative
difference in the energy dependence of the strangeness population factor $R_H$
when comparing the thermal production with the coalescence results.
