Google announces Gemini 4 Argon, starting with a limited rollout to cyber defenders

Google announced Gemini 4 Argon on September 30, 2026, describing it as a model for real-world coding, enterprise knowledge work, and cyber defense. Google says the model is rolling out first to a set of trusted cyber defenders through its Fairwind Program, and that it will make Argon available to developers, enterprises, and consumers later; the announcement gives no date for that wider availability. Google says the model's output token limit is 1 million tokens, up from 64K. The announcement does not mention published weights or a license.1