OpenAI’s September 2026 announcement of a Lean-formalized proof for finite-time singularity in the forced 3D Navier-Stokes equations—generated via 10,000 internal agents on an unreleased model—has withstood early scrutiny despite priority disputes with Buckmaster and Alpöge plus a reported natural-language/Lean mismatch. The Clay Institute has not accepted or rejected the result, and OpenAI has not withdrawn the core claim even after retracting unrelated preprints for sign errors. Trader consensus at 94.5% against retraction reflects the formal verification barrier and limited remaining calendar time in 2026. A decisive independent disproof or internal acknowledgment of invalidity could still shift odds before year-end.