OpenAI’s September 2026 launch of GPT-6 Astra, which posted a reported 97.6% on the corrected FrontierMath v2 Tier 4 set of 43 research-level problems and earned Epoch AI’s first “Major Advance” designation, has driven recent trader focus on additional Open Problems solves. The model also solved two of 68 open Erdős problems in early September runs, while earlier 2026 milestones include verified AI-assisted solutions to a Ramsey hypergraph problem, a 2-adic Galois group question, and the Hadamard matrix of order 668. Competitive pressure from Anthropic’s Claude Fable 5 series and ongoing Epoch expansions of verifiable open conjectures create a narrow window for new classifications before year-end resolution dates. Rapid saturation of private tiers contrasts with slower but accelerating progress on truly unsolved problems, where official Epoch recognition—not model claims—determines market outcomes.