Ask HN: Novels about or featuring malevolent AI?

Not sure about hard SF, but Prey by Michael Crichton?

http://en.wikipedia.org/wiki/Prey_(novel)

Malevolence is in the eye of the beholder, of course, but try Adolescence of P-1, True Names (novella) and A Fire Upon the Deep.

Bungie's Marathon trilogy, although not a novel, explored the inevitable digression of AI into rampancy. The terminal transcripts can still be found over here: http://marathon.bungie.org/story/contents.html

Robopocalypse, Daniel Wilson.

http://www.amazon.com/Robopocalypse-Novel-Daniel-H-Wilson/dp...

I have no mouth and I must scream, by Harlan Ellison.

The AIs in Vernor Vinge's A Fire Upon the Deep can be pretty nasty.

1- Gregory Benford's "Galactic Center" series http://en.wikipedia.org/wiki/Galactic_Center_Saga

2- Dan Simmons' "Hyperion Cantos" series http://en.wikipedia.org/wiki/Hyperion_Cantos

How about one where the AI is inadvertently malevolent? http://localroger.com/prime-intellect/index.html