Google announced Gemini 4 Carbon on October 28, 2026, positioning it as the company’s strongest frontier large language model with leading results on the updated Artificial Analysis Intelligence Index (59 points) and state-of-the-art gains in cybersecurity benchmarks such as vulnerability detection, exploitation, and patching, plus long-horizon agentic coding tasks. The model follows Gemini 4 Argon by just two weeks, reflecting Google DeepMind’s accelerated release cadence, and carries the same introductory pricing of $2 per million input tokens and $10 per million output tokens. Initial access is limited to a subset of vetted cyber defenders through the Fairwind Program while Google completes U.S. government voluntary pre-release testing and refines guardrails, mirroring Argon’s path that reached general developer and consumer availability roughly two weeks after its announcement. Traders price the highest probability for public release in the November 9–15 window, reflecting the short timeline precedent, ongoing phased expansion, and lack of a firm broader date. Key near-term catalysts include any Fairwind Program updates or official statements on general availability via the Gemini API or consumer products.