Gemini 4 Argon is Google's new frontier model, initially rolled out to trusted cyber defenders via the Fairwind Program.
It excels in deep reasoning for complex, long-horizon workflows, including software engineering, enterprise knowledge work (legal, finance), and cybersecurity defense.
Pricing is $2 per million input tokens and $10 per million output tokens, with cached input tokens at 95% off.
Internal use at Google shows improvements in quantum algorithmic optimization (40% better in minutes), memory efficiency (300 TiB+ saved), and large-scale codebase migrations (C/C++ to Rust).
Output token limit expanded to 1M, enabling deep reasoning in a single trajectory.
Cybersecurity capabilities include autonomous vulnerability discovery and patching, demonstrated by finding critical healthcare software vulnerabilities missed by previous models.
Safeguards include defenses against misuse, prompt injection attacks, misalignment monitoring, and hardened systems.
Broad rollout will begin with paid API customers and Google AI Ultra subscribers after phased testing.