DeepMind says Gemini 4 Argon is rolling out broadly after safety tests

What the research found

Google DeepMind's safety post says Gemini 4 Argon is now rolling out broadly after a limited Fairwind cyber-defender window, with 12 of 12 simulated cyberattack scenarios solved (up from 5) and nearly twofold fewer harmful-request violations. Primary source for safety claims; overlaps #767.

Claims and how well the evidence supports them

1. Argon is beginning to roll out broadly after a limited Fairwind cyber-defender window 98%
2. Argon solved all 12 end-to-end simulated cyberattack scenarios, up from 5 in the previous generation 99%
3. Violations on an adversarial harmful-request set reduced nearly twofold 98%
4. Argon is wrapped in three layers of real-time protection against jailbreaks 99%

Evidence

• deepmind.google https://deepmind.google/blog/developing-gemini-4-argon-responsibly-and-safely

Actionability rated medium.