Google releases Gemini 4 Argon, says it can autonomously discover and patch critical software vulnerabilities

Google released the frontier model Gemini 4 Argon and is making it available through the Fairwind Program to a group of trusted cyber defenders, saying the model can autonomously locate, verify, and patch critical software vulnerabilities, while providing versions without cyber guardrails to these defenders and to Google's internal teams. Developers, enterprises, and consumers will get access later, starting with paid API customers and Google AI Ultra subscribers. Google said this level of capability requires phased release, is still adjusting guardrails based on early tester feedback, and is participating in the U.S. government's voluntary process for pre-release model access; before release, it strengthened protections against cyber and chemical, biological, radiological, and nuclear misuse, with internal and external red team testing, and monitoring systems that observe its reasoning and actions and halt execution when necessary.