Google's Gemini 4 Carbon now available worldwide

Google has expanded access to Gemini 4 Carbon following its initial launch for a limited group of cybersecurity specialists. The company positions the model as a tool for multi-step programming, scientific research, and other tasks requiring prolonged reasoning and result verification.

According to Google, Gemini 4 Argon remains suitable for most development and information-processing tasks. Carbon uses more tokens to analyze problems in greater depth and perform extended verification cycles. In tests conducted by the company, the model ranked first in CursorBench 4.0, Perplexity WANDR, and Zapier AutomationBench, with task costs more than twice as low as those of the next-best external model.

Gemini 4 Carbon is available via API in Google AI Studio and Gemini for Business for all paid developers and companies. The starting price matches Argon’s rates: $2 per million input tokens and $10 per million output tokens. For Google AI Ultra subscribers paying $100 per month, the model is also being deployed in Gemini, AI Mode in Search, and Google Antigravity.

In cybersecurity, Google reports that Carbon has been used to identify and verify vulnerabilities. As part of the Wiz Scan for Good program, the model detected zero-day vulnerabilities in two major SaaS providers in under two hours. Additionally, Google will provide 10,000 researchers with free access to Carbon for six months for their work.