Gemini 4 Argon

Google DeepMind announced Gemini 4 Argon on September 30, 2026, built for long coding sessions, enterprise knowledge work, and cyber defense. It raises the maximum output to 1 million tokens, up from 64,000 on earlier Gemini models, and Google says it leads on 12 of 18 benchmarks tested against GPT-6 Astra and Claude Opus 5.5. Access is restricted for now to vetted partners in Google’s Fairwind cyber-defense program, with no public API or general release date yet. Introductory pricing is listed at $2 per million input tokens and $10 per million output tokens, rising to $4 and $20 once the preview period ends.