Recent OpenAI announcements of an AI-driven solution to the Navier-Stokes Millennium Prize Problem in September 2026, followed by hundreds of additional formal math proofs, have demonstrated rapid large language model progress in theorem proving and Lean verification. However, the 80% market-implied probability for zero further solves this year reflects the extreme difficulty of the remaining open problems, the time required for Clay Mathematics Institute validation, and the absence of confirmed breakthroughs on other Millennium questions since that announcement. Traders appear to view the September result as an outlier enabled by massive agent orchestration rather than a repeatable pattern that will yield multiple additional resolutions before year-end, with limited time left and ongoing debates over credit, generality, and full formal acceptance.