Google’s October 28 announcement of Gemini 4 Carbon triggered the current odds distribution, with the model’s advanced cybersecurity benchmarks and long-horizon capabilities prompting a deliberate, staged rollout. Initial access began this week for a subset of cyber defenders via the Fairwind Program, followed by phased expansion to trusted partners while Google iterates on guardrails and completes U.S. government pre-release testing. This mirrors the Gemini 4 Argon precedent, where defender access preceded general API and product availability by roughly two weeks. Traders weigh the “as soon as possible” language against typical safety review cycles, supply-chain-independent software timelines, and the absence of a firm public date, producing a tight cluster around November 10–12 for broader release and a meaningful tail on no release by November 30.