[AINews] Gemini 4 Carbon tops leaderboards, launches for cyber defenders

Google DeepMind released Gemini 4 Carbon, a frontier model that takes the #1 spot on Artificial Analysis' Intelligence Index v5 with a score of 59, two weeks after Argon. Access is initially limited to trusted cyber defenders through the Fairwind Program, with claimed results of 88.2% on SEC-bench Pro, 54.8% on ExploitGym and 71.0% on CWE-bench, a 1M-token context window, and pricing listed at $4/$20 per million tokens with a 50% launch discount. Independent evaluations place it first in Text Arena and Vending-Bench 2 but behind Opus 5.5 on coding-agent and FrontierSWE benchmarks, and its hallucination rate rose from Argon's 4% to 11%.