Google Releases Gemini 4 Carbon Model With Agent Swarm Feature

Google is rolling out its latest artificial intelligence model, Gemini 4 Carbon, to the general public after initially releasing it to a select group of cybersecurity defenders two weeks prior. According to the company, Carbon is its strongest model yet and is capable of competing with top systems from OpenAI and Anthropic.

The new model pushes the frontier further than Google's previous release, Argon, which launched the month before. While the company noted that Argon remains an ideal choice for the majority of software engineering and knowledge work, Carbon is designed for tasks that test the limits of a model’s intelligence, such as complex, multi-step coding and open-ended scientific research.

Agent Swarm and Availability

To highlight the utility of Carbon for long-horizon work involving AI agents, Google previewed a swarm feature on its agentic development platform Antigravity, which allows users to turn a single prompt into a coordinated team of agents. The release is rolling out via the Gemini API in Google AI Studio and Gemini for business for paying developers and enterprises, and is also available to Google AI Ultra subscribers in the Gemini app, Search AI Mode, and Antigravity. It remains unclear when or if the model will reach lower tier subscribers or free users.

Google has priced Carbon competitively with an introductory rate of $2 per million input tokens and $10 per million output tokens, which is a fraction of the cost of rival models. These introductory prices are set to double at the end of November when the promotion ends, though the system will remain priced below several competitors on a per-token basis.