We are in a modern realm where many of our Science Fiction conceits are becoming if not real than more real:

Colossus: The Forbin Project, where government sponsored defense computers on both sides of the iron curtain decide to take over the world in defense of humanity.

The Moon is a Harsh Mistress book by the great Robert A. Heinlein where a moon based computer evolves self awareness and military powers.

The Day the Earth Stood Still where an interplanetary federation reveals that it has evolved robotic peacekeepers and submitted to them.

It may seem that AI is a grim remorseless force but there is a line from an unrelated movie that suggests: What if this is "As Good As It Gets"?