Google announces Gemini 4 Carbon with cyber defenders getting first access
Carbon targets cybersecurity and longer engineering tasks, with broader availability still pending.
Google has announced Gemini 4 Carbon, a frontier model aimed at cybersecurity and sustained software engineering. Access starts this week with selected cyber defenders, then expands through its Fairwind Program. Google has not set a date for wider availability.
Carbon arrives just four weeks after Google announced Gemini 4 Argon on September 30. Argon became broadly available on October 13, giving Google two frontier-model announcements within a month, although Carbon's initial rollout remains limited.
Cybersecurity and longer tasks
Google reports scores of 88.2% on SEC-bench Pro, 54.8% on ExploitGym, and 71.0% on CWE-bench, covering vulnerability discovery, exploitation, and patching. These evaluations ran without guardrails; the results are company-reported.
Google also says internal teams have used Carbon on engineering tasks lasting days.
Original benchmark charts
Google's published comparisons are shown below. These are company-reported results. Cybersecurity evaluations ran without guardrails; ExploitGym comparisons use the time limits shown in the chart.
Source: Google's Gemini 4 Carbon announcement. Select an image to view it full size.
Announced pricing
Introductory pricing is $2 per million input tokens and $10 per million output tokens. Those rates rise to $4 and $20 after an introductory period whose end date is unspecified.