Google introduced Gemini 4 Carbon today, setting introductory rates of $2 for each million input tokens and $10 for each million output tokens, with access scheduled to begin this week for selected cyber defenders. Google says the model improves coding, cybersecurity and tasks requiring sustained work over longer periods.
The introductory rates match Gemini 4 Argon, which Google launched two weeks ago and used as the foundation for Carbon. Cached input tokens will receive a 95% discount against the input rate. Access will expand gradually to more trusted partners through Google's Fairwind Program, while broader availability for developers, businesses and consumers has no firm date.
Read more: Google Plans to Use 2,000 Retired Pixel Phones for Low-Carbon Computing Clusters
Google reports that Carbon places first with a score of 59 on version 5.0 of the Artificial Analysis Intelligence Index. For cybersecurity testing, the company reports a 71.0% patching result on CWE-bench, an 88.2% vulnerability discovery result on SEC-bench Pro and a 54.8% exploitation result on ExploitGym.
Google says its internal tests show improvements in secure code generation, while coding work with its own teams produced lower rates of fabrication and misalignment.
Google is participating in the U.S. government's voluntary testing process for models before release. The company says it will use feedback to refine guardrails ahead of broader access through its products, and that its researchers are working with models to improve capabilities while developing safeguards.
