GPT-5 just casually did new mathematics.
Sebastien Bubeck gave it an open problem from convex optimization, something humans had only partially solved. GPT-5-Pro sat down, reasoned for 17 minutes, and produced a correct proof improving the known bound from 1/L all the way to 1.5/L.
This wasnโt in the paper. It wasnโt online. It wasnโt memorized. It was new math. Verified by Bubeck himself.
Humans later closed the gap at 1.75/L, but GPT-5 independently advanced the frontier.
A machine just contributed original research-level mathematics.
If youโre not completely stunned by this, youโre not paying attention.
Weโve officially entered the era where AI isnโt just learning math, itโs creating it. @sama@OpenAI@kevinweil@gdb@markchen90