# ‘Immature playground boasting’: Mathematicians uneasy at OpenAI’s latest scalp > Source: > Published: 2026-09-12 08:00:28+00:00 # ‘Immature playground boasting’: Mathematicians uneasy at OpenAI’s latest scalp By Ian Sample Science editorSource: [The Guardian Technology](https://www.theguardian.com/us/technology) As [OpenAI](/glossary/openai) model cracks Millennium Prize Problem that puzzled experts for decades, many feel shocked at pace of change It was a week that left mathematicians reeling. Hot on the heels of a [flurry of cases](https://www.theguardian.com/technology/2026/may/21/openai-paul-erdos-maths-problem-breakthrough) of [artificial intelligence](/glossary/artificial-intelligence) [furthering the field](https://deepmind.google/blog/ai-solves-imo-problems-at-silver-medal-level/), OpenAI declared a major scalp: its latest AI model had cracked a Millennium Prize Problem, a puzzle with a $1m reward that had defied human brains for decades. The achievement bore little resemblance to how mathematical problems normally fall. A near-trillion dollar private company had unleashed 10,000 agents – AI systems that carry out tasks autonomously – on the problem. The bill was estimated at $15m. [Continue reading...](https://www.theguardian.com/science/2026/sep/12/openai-mathematicians-millennium-prize-problem) Get AI news in your inbox Daily digest of what matters in AI.