Google announces Gemini 4 Carbon with cyber defense benchmarks

Google said on Oct. 28, 2026 that Gemini 4 Carbon is its next frontier model, positioning it as the company’s strongest system to date with a focus on cybersecurity defense and long-horizon tasks. The announcement said Carbon ranks No. 1 on the updated Artificial Analysis Intelligence Index v5.0 at 59 and outperforms prior Gemini models on several coding, agentic and security benchmarks. In Google’s post, Carbon is described as delivering a state-of-the-art 88.2% on SEC-bench Pro for finding vulnerabilities, 54.8% on ExploitGym for exploitation and 71.0% on CWE-bench for patching. The company also said internal testing showed more than a 2x uplift in secure-code generation versus Gemini 4 Argon, and that high-severity misalignment alerts in live coding environments with internal teams fell by almost 80%.

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