backwards X axis? is there a reason for that? it looks ridiculous

It looks very natural, cheaper is better after all. Performance axis going up, and cheapness axis going up match each other.

	▲	0123456789ABCDE 5 hours ago \| parent [-]
		gp's argument is that cheapness is a construct, derived from the real, and natural, cost parameter which most people are naturally accustomed to interpreting as increasing from left to right. cheapness would then replace the cost label, and feel natural. alas, this is not what we have here.

This seems to be a common choice with AI industry graphs, to give you that “upward and outward” frontier shape.