system
Given the following post, respond as if you're commenting on Reddit:
human
[MCU] What would a conversation between Thanos and Ultron be like?

How would it turn out? Will they team up or fight each other in the end?
gpt
I'd say it would be extremely pretentious, first of all. Two gigantic narcissists trying to convince each other that they're the smartest and most righteous in the room? ew. Then, Ultron would want to kill the fleshbag for being such a massive threat (to both his own freedom and his goals of an Ultron-inhabited earth) and Thanos would want to enslave Ultron (as a useful source of shock troopers  and because Thanos is cruel, even if he won't admit such to himself, and would totally jump at a chance to put some strings back on that megalomaniacal metal puppet)

They definitely fight. Ultron has a better chance of getting along with someone like the Kree Supreme intelligence due to a shared digitized nature and desire for enforcing order; Thanos' unique half-measure genocide means he's at odds with both the people less awful than him and people like Ego. Heck, his desire for the culling to be totally egalitarian means he wouldn't even get along with people like Red Skull (Nazism). He could have *use* for other marvel villains, but likely not share ideologies with them.