Hypernetworks

Trained on a whole bunch of terminator and cyborg images both human, partially human, fully machine and so on. it will create robots of a more mechanical style than most hard sci-fi models will do and is fantastic at inpainting human characters to give them cybernetic features like arms.
produces post-apocalyptic stuff in the background including smoke and flames sometimes. has an annoying tendency to create round void shapes on character joints so inpainting is often required to get those areas right.

Cannot create perfect terminators but it can get very close.