Modellerna som visas i TPM var OOM-serier som beskrivs som smarterare än den första satsen av B1 . B1: erna producerades för att så småningom ersätta OOM-serien för Clone Wars.
Om B1: s beteende visade hur de gjorde det här, om det från deras artikel på Wookiepedia:
Although the earlier generations were entirely dependent on Central Control Computers, post-Naboo models were retrofitted with cognitive models that allowed independent thought, and featured a greater degree of independence and personality. However, labored with more and more specialized roles that pushed the limits of their programming, many older droids developed personality quirks and a tendency to excessively comment on their situations in an attempt to handle the data overflow that had strained their old logic modules.
Om du undrar varför B1: n inte var så smarta i allmänhet, här är ett bra inlägg om ämnet.