Google launches Gemini 4 Carbon for security work but only cyber defenders get it

Google has released Gemini 4 Carbon, a model built for software security. It can look for vulnerabilities, test whether they can be exploited and write a fix. Google calls it its strongest model so far. For now only selected cyber defenders can use it. Governments, critical infrastructure operators and large platforms come first, through a programme called Fairwind.

The limit has a reason. A model that finds and exploits flaws for a defender can do the same for an attacker. Google reports 88 percent on a benchmark for finding vulnerabilities and 71 percent on one for patching them. These scores are Google's own. The introductory price is two dollars per million input tokens and ten dollars per million output tokens, doubling later. No date for general access has been given.