Google unveiled Gemini 4 Carbon on Oct. 28, presenting it as a model for advanced cybersecurity and long engineering projects while initially limiting access to selected cyber defenders.
Google says Carbon can help security teams find software vulnerabilities, test whether they can be used in an attack and develop fixes. Google reports scores of 88.2% on SEC-bench Pro, 54.8% on ExploitGym and 71% on CWE-bench. Google also says Carbon generated secure code at more than twice Gemini 4 Argon’s success rate on internal tests.
Those results have not been independently confirmed. Google says Carbon ranked first on Artificial Analysis’s updated Intelligence Index, with a score of 59. Carbon builds on Gemini 4 Argon, which Google introduced two weeks earlier.
The company designed Carbon to keep working on complex coding and engineering problems that may take days to solve. Google plans to first give Carbon to a subset of cyber defenders. It will then gradually expand access to trusted partners through its Fairwind Program while gathering feedback and improving safeguards.
Google plans to make Carbon more widely available to developers, businesses and consumers, but has not set a date. The staged release reflects the fact that cybersecurity tools can be used in two ways. They may help defenders secure software, but powerful tools for finding vulnerabilities also need careful safeguards.