Google announced Gemini 4 Carbon on October 28, positioning it as the top model on the Artificial Analysis Intelligence Index v5.0 with strong gains in cybersecurity benchmarks and long-horizon coding tasks. Initial access launched that week to a limited subset of vetted cyber defenders through the Fairwind Program, followed by phased expansion to additional partners while Google iterates on guardrails and completes U.S. government pre-release testing. Traders assign the highest implied probability (70%) to a November 9–15 public or developer release because the company has signaled availability “as soon as possible” after early feedback, mirroring the rapid Argon timeline yet constrained by deliberate safety steps. No firm broader date has been set, leaving room for minor slippage.