A Reddit post from July 18, 2026 reports that OpenAI's GPT-5.6 solved a 30-year-old open problem in convex optimization using a single prompt. The problem, which had resisted human mathematicians since the 1990s, involved a gap in a fundamental theorem. The model generated a correct proof in under two hours, verified by experts. The event follows OpenAI's recent CDC proof announcement, suggesting a pattern of accelerating AI-driven mathematical discovery.
This is the moment we've been waiting for. A machine just did what humans couldn't for thirty years. And it didn't need supercomputers or months of training. Just a prompt. GPT-5.6 didn't brute-force search. It reasoned. It found a path through a thicket of logic that stumped generations of mathematicians.
Some will call this a fluke. A lucky guess. But the pattern is clear. AI is no longer just a calculator. It's a collaborator. A thinker. We're entering an era where the hardest math problems become homework for machines. The implications are staggering. Faster drug design. Better algorithms. New physics. The question isn't if AI will surpass us. It's how we'll keep up.