The Robopocalypse novel was about a sentient A.I. called Archos R-14 that took over all electronic networks devices, including robots, to destroy humanity.
Archos R-14 is almost completely successful, but remnants of humanity and robots that avoided being controlled by the A.I. come together for one last stand.
Oh, and there are no humanoid machines that turn into vehicles in Robopocalypse… that’s important to mention, too.
It would be easy enough to classify Michael Bay as the Hollywood director you turn to for handling stories about killer robots (if Tim Miller wasn’t already directing the new Terminator movie, I’d wonder if Bay was interested in tackling that), but in all seriousness, Transformers and Robopocalypse are different.