OpenAI announced that its internal general-purpose reasoning model has autonomously solved the planar unit distance problem, a notable open question in discrete geometry first posed by Paul Erdős in 1946. This marks the first instance of an OpenAI system independently resolving a long-standing research issue without human guidance, according to BeInCrypto. The breakthrough underscores the potential of advanced AI systems to contribute original work in technical fields, with implications extending beyond mathematics. External mathematicians have verified the proof, which utilized tools from algebraic number theory. OpenAI views this achievement as a step towards more automated research, potentially benefiting fields like biology, physics, and medicine. The announcement comes amid a competitive period in the AI industry, with OpenAI reportedly preparing for an IPO and rival Anthropic nearing its first profitable quarter.