Google makes Gemini 4 Carbon available to paying developers

Google said on 10 November that Gemini 4 Carbon is available to developers, enterprises, scientists, and consumers. Paying developers and enterprises can use it through the API in Google AI Studio and in Gemini for business. The introductory price is the same as Gemini 4 Argon: $2 per million input tokens and $10 per million output tokens. Google AI Ultra subscribers get it in the Gemini app, in AI Mode in Search, and in Antigravity. Google says Argon remains the choice for the majority of software-engineering and knowledge work, and that Carbon is for tasks at the limit of what the model can do.

The post says that two weeks earlier Gemini 4 Carbon went to a set of cybersecurity defenders through a programme called Fairwind. On the new post, Google says Carbon ranks first on CursorBench 4.0, on Perplexity’s WANDR, and on Zapier’s AutomationBench, at more than twice lower cost per task than the next external model. On a multimodal knowledge-agent benchmark from Artificial Analysis, Google says Carbon ranks second, at more than six times lower average cost per task than the leading model. Those rankings are Google’s account of the tests.

Google also says a programme that offered 10,000 scientists six months of Argon in Antigravity, free of charge, is being extended so current and future participants can use Carbon. Applications remain open. The post says onboarding continues weekly and depends on eligibility, capacity, and selection.