Recent AI advances have shifted trader sentiment toward the likelihood of further substantive progress on the Riemann Hypothesis. OpenAI's October 2026 release of papers asserting the Quasi-Riemann Hypothesis with θ=7/8 tightens error bounds in the Prime Number Theorem, while Anthropic's unreleased Claude model raised the unconditional lower bound on simple zeros lying on the critical line from 41.6% to 67.2%, with results formalized in Lean and reviewed by experts. These developments build on AI-assisted mathematical workflows involving agent swarms and prior human research, highlighting competitive dynamics between leading labs. Upcoming catalysts include further model releases and formal verifications that could extend these partial results.