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Google Says Wiz Found a Zero-Day Flaw With Carbon for cyber
The security-focused version remains limited to Google’s Fairwind program, while paying developers can access the general model through an API.

Google disclosed that Wiz used Carbon for cyber, its security-focused Gemini 4 Carbon version, to examine two large software providers and find a new zero-day flaw in under two hours. Wiz helped the companies fix it.
Carbon for cyber remains available only through Google’s Fairwind program. The general Gemini 4 Carbon model opened to paying developers through an API on Nov. 11, in a global developer rollout.
Google AI Ultra users can also use the model in Gemini, AI Mode in Search and Antigravity. Free and Pro users do not have access to Carbon through those products.