❯ Google unveils Gemini 4 Carbon, starting with cyber defenders

Another flagship after two weeksGoogle introduced Gemini 4 Carbon on October 28, just two weeks after Argon. Carbon scores 59 on Artificial Analysis Intelligence Index v5, taking first place. Google emphasizes coding, cybersecurity and sustained autonomous work.

Finding, validating and fixing flawsCarbon addresses vulnerability discovery, exploit validation and root-cause remediation. Google reports 88.2% on SEC-bench Pro, 54.8% on ExploitGym and 71.0% on CWE-bench, evaluated without guardrails. For security teams, the opportunity is to move from a suspected flaw to a validated, actionable code fix.

Reliability over long runsGoogle says internal teams have run Carbon for days on difficult problems in large codebases and low-level systems. It also reports work to reduce shortcut-taking, unsupported completion claims and prompt injection. These are Google’s internal observations and tests, rather than a universal productivity multiplier; they address the difficulty of keeping an agent useful and reliable over many hours.

Access remains limitedA subset of cyber defenders gets access first this week, followed by trusted partners through Fairwind. General access dates for developers, businesses and consumers remain unannounced. Introductory prices are $2 per million input tokens and $10 per million output tokens, rising to $4 and $20 afterward, with a 95% discount for cached input.

▮ SIGNALFrontier competition increasingly concerns an entire workflow—finding a problem, validating its significance and completing a repair—rather than the quality of one answer.