Trader consensus heavily favors zero additional Millennium Prize Problems solved by AI in 2026, with a 76.5% implied probability, reflecting the extreme difficulty of these longstanding math challenges and skepticism that OpenAI’s September 2026 Navier-Stokes result—produced via thousands of internal AI agents over roughly 100 hours—will trigger rapid follow-on breakthroughs before year-end. The announcement, which included a Lean formalization but sparked controversy over potential reliance on concurrent human-AI work by others, highlighted massive compute demands and verification hurdles that limit scalability. While recent reports note OpenAI tackling hundreds of other open problems, the market-implied odds underscore doubts about official Clay Institute acceptance or further verified solutions materializing in the remaining months.