Google Opens Gemini 4 Carbon, Its Most Powerful AI Model, to Developers and Subscribers

MOUNTAIN VIEW, Calif., Nov. 10 (TodayViralUSA) — Google on Tuesday opened its most powerful artificial intelligence model, Gemini 4 Carbon, to paying developers, businesses and top-tier subscribers, two weeks after a limited release to cybersecurity specialists.

The company called Carbon its “strongest model,” with frontier performance in cybersecurity and in long-running, multi-step “agentic” work across software engineering, knowledge work and scientific research.

Who gets it

Carbon is available through the paid Gemini API in Google AI Studio and through Gemini for business, Google said in a blog post by Koray Kavukcuoglu, chief AI architect at Google. Consumers can use it through Google AI Ultra subscriptions in the Gemini app, AI Mode in Search and Antigravity, Google’s agentic coding platform. The Verge reported it was unclear when, or whether, lower-tier or free users would get access.

The model was first released in late October to a group of cybersecurity defenders through Google’s gated Fairwind program. Engadget reported that early users had found zero-day software vulnerabilities with it, and that Google is giving 10,000 scientists free access for six months.

Built for the hardest tasks

Google said its earlier Gemini 4 Argon model remains the better choice for most everyday coding and knowledge work. Carbon, by contrast, is designed for problems that test the limits of a model, such as complex debugging and open-ended scientific discovery, and uses more computing tokens to reason and check its work.

Alongside the launch, Google is previewing a “swarm” feature in Antigravity that turns a single prompt into a coordinated team of AI agents that divide up a project and review one another’s output.

A price war at the frontier

Carbon launches at an introductory price of $2 per million input tokens and $10 per million output tokens, rising to $4 and $20 after Nov. 30. VentureBeat reported that the introductory rate is one-quarter the standard price of Anthropic’s Claude Fable 5.2, which launched a day earlier.

The competition is fierce. VentureBeat noted that Fable 5.2 has since overtaken Carbon at the top of Artificial Analysis’s general intelligence index, where Carbon had debuted in first place. The Verge cautioned that companies tend to highlight the benchmarks that flatter their products, and that lower per-token prices do not always mean lower total costs.

Still, the release marks a strong return for Google to the front of the AI race after months in which the field looked dominated by OpenAI and Anthropic.