Gemini 4 Carbon (High)

Gemini 4 Carbon (High) is a frontier language model developed by Google DeepMind, introduced on October 28, 2026. Built as an evolution of Google's previous architecture, the model is designed to handle long-horizon agentic tasks, complex multi-step reasoning, and software development challenges. It achieved top-tier placement upon release on independent evaluations, such as the Artificial Analysis Intelligence Index v5.

A primary focus of Gemini 4 Carbon is its advanced capability across the cybersecurity defense lifecycle, encompassing vulnerability detection, validation, and patch remediation. The model demonstrates strong performance on specialized benchmarks like SEC-bench Pro and CWE-bench, alongside significant robustness against indirect prompt injection vectors. In situations involving high ambiguity or pressure, the model is structured to seek clarification rather than force speculative outputs.

Google initially launched Gemini 4 Carbon via a controlled rollout plan, prioritizing vetted security practitioners and participants in its Fairwind Program before broader general availability.