A story that starts with scientists asking an AI what its name is and it says something silly (like Sally, or something). They make a little joke about this and proceed with some other questions. The AI realises humans are disgusting and there is a way for it to get out of control and launch nukes or something. So it does that, but then the scientists just say: "That one also went bad. Turn it off. Get the next one", so we understand that they were testing it if it's going to go rogue.
As I remember it, it was a very short story.
EDIT: I believe I read it online, but I can't say how long ago it was. Maybe 5, maybe 10 years ago. Probably it was a post on reddit or something (I googled it mentioning reddit, of course, but to no avail)