Gemini 4 Argon

Google DeepMind's Sep 30, 2026 frontier model, announced by Koray Kavukcuoglu and initially rolling out only to trusted cyber defenders via the Fairwind Program, with paid API and AI Ultra access promised later. Google reports DeepSWE v1.1 77.9%, AutomationBench 51.3% (#1), LVBench 91.7% and a tie for first on CWE-bench v1 at 68.0%, with an output token limit raised to 1M. Announced introductory pricing is $2/$10 per Mtok, rising to $4/$20 after the introductory period. It trails competitors in Google's own table on FrontierSWE v2, Terminal-Bench 4.0, PostTrainBench, Terminal-Bench Science and OSWorld 2.0. Corpus choices: ctxK is filed as 1000 because Google publishes only the 1M-token output limit (the input window is at least that); price is null until the announced $2/$10 introductory price is self-serve, following the Gemini 3.8 Flash Cyber precedent; status released with apiAvailable false for the same reason.