According to @gdb and @neelsomani on X, GPT-5.2 Pro has successfully solved Erdős problem #281, a previously unsolved challenge in mathematics, without any prior human solutions. Mathematician Terence Tao described this as 'perhaps the most unambiguous instance' of AI independently solving an open mathematical problem (source: https://x.com/neelsomani/status/2012695714187325745). This achievement demonstrates the rapidly growing practical potential of advanced AI models in theoretical mathematics and scientific research. The use of GPT-5.2 Pro in this context highlights new business opportunities in AI-driven mathematical discovery and automation, as well as future trends in AI-assisted scientific innovation.