Originally Posted by
godisawesome
Ultron’s legitimately crazy for an AI; I’ve interpreted it as a sign that he's basically “broken” from the moment he achieves awareness - that Tony failed to account for the way a fully realized AI with emotions might need to have an entirely separate emotional programming as well. He gave a being free will, and intellect, and meant to do that... but didn’t consider emotional stability in the equation, and when Ultron was exposed to the irrational nature of the world, he basically hyper-traumatized himself in a nanosecond. That’s why the first serious sign that Ultron is violent occurs when we hear him question why JARVIS calls Tony “sir.” It’s an emotionally loaded question that tells you more about Ultron than it’s asking of JARVIS.
Vision, being based off left over Jarvis AI and the already sentient mind stone on top of Ultron’s intellect, was “born” with enough emotional stability to interpret input and sensation in a healthy way.