Google announced Gemini 4 Carbon on October 28 as its strongest frontier model, topping the updated Artificial Analysis Intelligence Index at 59 with leading results in cybersecurity benchmarks such as SEC-bench Pro (88.2%) and long-horizon coding tasks. The release follows Gemini 4 Argon by just two weeks and mirrors its phased approach: initial access is limited to vetted cyber defenders through the Fairwind Program, with gradual expansion to trusted partners before broader developer and consumer availability. Google has committed only to releasing “as soon as possible” after refining guardrails, creating tight clustering in near-term release-date markets around mid-November. Traders weigh the precedent of Argon’s two-week path to general access against the extra security scrutiny and lack of a firm timeline.