OpenAI’s recent announcement of an AI-generated Navier-Stokes proof—formalized in Lean after an 88-hour run of roughly 10,000 agents on an internal model—has stabilized trader sentiment against retraction. The company published the full write-up and verification on September 8, explicitly declined the Millennium Prize, and addressed credit concerns with Buckmaster and Alpöge by denying improper data access while standing by the result. With the proof machine-checkable and no credible errors identified in the first 48 hours, the 62.5% market-implied probability for “No” reflects confidence that independent scrutiny will not force a reversal before year-end. Key near-term catalysts include peer reviews or Lean audits that could surface flaws, but the current verified publication and short timeline favor the solution holding.