Google announces Gemini 4 Carbon, citing a major cybersecurity leap

Google announced Gemini 4 Carbon, the successor to Gemini 4 Argon, saying the model represents a significant advance in cybersecurity, coding, and long-horizon agentic tasks. The company says it leads the Artificial Analysis Intelligence Index v5.0 and scores 88.2% on SEC-bench Pro, 54.8% on ExploitGym, and 71.0% on CWE-bench. Google also says the Chrome team saw performance more than ten times better than another lab’s frontier model when generating high-quality patches.

Access starts this week for a group of cyber defenders and will expand to trusted partners through the Fairwind Program before reaching developers, businesses, and consumers. The introductory price will be $2 per million input tokens and $10 per million output tokens. Ars Technica notes that Carbon beats Argon by narrow margins on the disclosed tests and questions whether it is an entirely new model or a post-training upgrade.