Google announced Gemini 4 Argon on September 30, calling it its frontier model for software engineering, enterprise knowledge work, and cyber defense. It is rolling out first to trusted cyber defenders through Google's Fairwind Program, with paid API customers and Google AI Ultra subscribers next. The introductory price is $2 per million input tokens and $10 per million output tokens, rising to $4 and $20 after the introductory period. Google raised the output limit to 1 million tokens from 64,000. It says it is taking part in the U.S. government's voluntary process for pre-release model access. Companies that buy AI tools should expect a pattern: the strongest models now arrive in stages, with the first users chosen by the vendor and terms that can change. Budget around the price, since the $2 and $10 rate is introductory and the list price is double. Google plans to release Argon to trusted defenders and internal teams without cyber guardrails, relying on controlled access. Wait for the general release terms before planning to rely on it. Budget Argon at the $4 and $20 list price, since the $2 and $10 rate is introductory.