Google on Tuesday, Nov. 10, made Gemini 4 Carbon available to developers, enterprises and consumers, the company said.
The model is rolling out to all Google AI Ultra subscribers in the Gemini app, AI Mode in Search and Google Antigravity. Paying developers and enterprises can use it through the API in Google AI Studio and Gemini for business at the same introductory price as Gemini 4 Argon, $2 per million input tokens and $10 per million output tokens. Google said Argon remains the usual choice for most software engineering and knowledge work, while Carbon is built for tasks that test a model's limits, such as complex, multi-step coding and open-ended scientific research.
9to5Google reported that the Gemini app has removed Gemini 3.1 Pro with this launch, and that Antigravity is previewing a /swarm feature that turns a single prompt into a coordinated team of agents. Google said Carbon ranks first on several workflow benchmarks it cited, including CursorBench 4.0, at more than twice as low a cost per task as the next-best external model.