Synths generated by ascension are distinct from robots, and appear in the race list underneath your starting species. All organic pops converted by the ascension project or subsequent assimilation become members of this single species.Speaking about synths, are ascended ones still separate race from ones built before? What about xenos that you turn into tin cans?
Some report that in their saves, the ascension robot species cannot be assembled. It appears in the list of robot models, but if chosen a baseline no-traits robot is assembled instead.