“Notably, O3-MINI, despite being one of the best reasoning models, frequently skipped essential proof steps by labeling them as “trivial”, even when their validity was crucial.”
This is actually an accurate representation of most “gifted olympiad laureate attempting to solve a freshman CS problem on the blackboard” students I’ve went to uni with.
Jumps to the front after 5 seconds from the task being assigned, bluffs that the problem is trivial, tries to salvage their reasoning for 5 minutes when questioned by the tutor, turns out the theorem they said was trivial is actually false, sits down having wasted 10 minutes of everyone’s time.