Google DeepMind begins broader Gemini 4 Argon rollout with new safeguards

Google DeepMind has begun broadly rolling out Gemini 4 Argon and expanding its Fairwind Program to more trusted cybersecurity defenders. The company says that during limited access, Wiz used the model to uncover a critical bug in hospital software that previous models had missed, while Google’s security teams found and fixed vulnerabilities in internal and open-source software. The company says Argon solved all 12 simulated cyberattack scenarios in its tests, up from five in the previous generation, and showed stronger capabilities in biology evaluations.

Because of these results, Google DeepMind says it applied advanced safeguards for cybersecurity and biology. They include request screening, probes that analyze the model’s internal signals, and continuous monitoring to cut off problematic responses. The company also says the model became better at refusing dangerous requests, with violations on an adversarial set reduced by nearly half.