Google launches Gemini 4 Carbon for AI Ultra subscribers

Google has begun rolling out its Gemini 4 Carbon model to a wider audience, including Google AI Ultra subscribers, paying developers, and businesses. The model, which was initially released to a select group of cybersecurity defenders in late October, is now accessible in the Gemini app, Search's AI Mode, and the Antigravity platform. Carbon is designed to use more tokens to explore problems and check its own work, making it well-suited for complex tasks like debugging code spanning multiple parts of an application. Developers and businesses can also access it through the paid Gemini API in Google AI Studio and Android Studio, with standard API pricing starting at $2 per million input tokens and $10 per million output tokens before rates double on December 1.