Google's post "Gemini 4 Argon: our next era of frontier intelligence" is dated 30 September 2026 and says "Today, we're announcing our new frontier model, Gemini 4 Argon, which is rolling out to a set of trusted cyber defenders"; broad availability for developers, enterprises and consumers follows "as soon as possible" (see the estimated pin 4810).[1]
Google announces Gemini 4 Argon, its new frontier model for real-world coding, enterprise knowledge work and cyber defence, rolling out first to trusted cyber defenders through the Fairwind Program ahead of broad release at $2 per million input tokens and $10 per million output tokens.
