Fairwind Program

Google has opened Gemini 4 Carbon, its strongest model, to all paying developers and Google AI Ultra subscribers, ending a two-week restriction to cybersecurity defenders in its Fairwind Program. Carbon keeps Gemini 4 Argon's introductory pricing of $2/$10 per 1M input/output tokens but spends more tokens on reasoning and verification, ranking first on CursorBench 4.0, WANDR and AutomationBench at less than half the per-task cost of the next-best outside model.

Google has made Gemini 4 Carbon generally available to developers, enterprises, scientists, and consumers, positioning it as its strongest frontier model with leading performance in cybersecurity and long-horizon agentic workflows. Previously released to defenders via the Fairwind Program, Carbon targets complex multi-step coding, debugging, and open-ended scientific discovery, while Gemini 4 Argon remains the default for most software engineering and knowledge work.