23 Daily — According to theverge.com, on October 28, 2026, Google released its latest frontier AI model, Gemini 4 Carbon. This new model delivers significant improvements in coding, agentic tasks, and cybersecurity. Currently, it is available only to select cybersecurity defense companies, with plans to expand access to more partners in its Fairwind Program.
Gemini 4 Carbon Tops AI Security Benchmarks
Google highlights that Gemini 4 Carbon ranks first on the Artificial Analysis Intelligence Index (v5.0), ahead of competitors Claude Opus 5.5 and GPT-6 Astra. Compared to Argon, Google's earlier model released earlier this month, Carbon made notable enhancements.
Gemini 4 Carbon excels in cybersecurity benchmarks, leading in SEC-bench Pro—which measures an AI model's ability to detect real-world bugs—as well as in ExploitGym, which tests a model's capacity to convert vulnerabilities into exploits.
Enhanced Long-Duration Task Handling and Security Features
Google states that Gemini 4 Carbon is designed for longer and more complex tasks. Internal tests show it can run for days, persisting through dead ends to solve complex, multi-step engineering challenges. The model also improves resistance to prompt injection attacks and collaborates better with users. Compared to Argon, Carbon reduces unsupported claims by half, improving transparency and honesty.
Editor's take: Gemini 4 Carbon Opens New Avenues in Cybersecurity
Gemini 4 Carbon's strong performance in vulnerability detection and cyber defense marks a significant advancement in automating security efforts through AI. Its focus on long-task persistence and attack resistance suits it for complex system security monitoring. For startups, adopting such advanced models can enhance product security and reliability. Validation methods include evaluating its real-world efficiency in identifying and mitigating vulnerabilities and its consistency and accuracy in handling multi-step tasks, key indicators of its practical value.