Google opens Gemini 4 Carbon to paying users
Google is expanding access to Gemini 4 Carbon, its latest AI model, after first making it available to a select group of “cybersecurity defenders” two weeks ago. The company describes Carbon as its “strongest model” yet, designed for demanding, multi-step work rather than routine coding and knowledge tasks.
Google says Carbon “pushes the frontier even further” than Argon, a model it launched last month. The company says Argon is likely to remain “the ideal choice for the majority of software engineering and knowledge work,” while Carbon is intended for work that tests a model’s capabilities, including complex, multi-step coding and open-ended scientific research.
Google is also previewing a “swarm” feature on Antigravity, its agentic development platform. The feature is designed to turn a single prompt “into a coordinated team of agents,” the company said.
Carbon is rolling out through the Gemini API in Google AI Studio and Gemini for business for paying developers and enterprises. It will also be available to Google AI Ultra subscribers in the Gemini app, AI Mode in Search and Antigravity. Google has not said when, or whether, the model will reach lower-tier subscribers or free users.
The introductory price is $2 per million input tokens and $10 per million output tokens. The source says the pricing is around a fifth, but does not specify the comparison.
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