OpenAI claims new AI solved 80-year-old math problem

OpenAI announced its new reasoning model has generated an original mathematical proof disproving a long-standing conjecture in geometry. This achievement follows a previous, retracted claim about GPT-5 solving similar problems. However, this time, OpenAI has published supporting remarks from mathematicians, suggesting the proof is valid. The company highlights this as the first instance of AI autonomously solving a prominent open problem in mathematics. This breakthrough demonstrates AI's enhanced capability for complex, long-chain reasoning and cross-disciplinary idea connection, with potential implications across science and engineering.