What Landed
Google announced Gemini 4 Carbon but has not released it. It scores 59 on the Artificial Analysis Intelligence Index v5, against 58 for Opus 5.5 and 57 for GPT-6 Astra. Its widest lead is offensive security: ExploitGym 54, against 42 for Astra and 34 for Opus. Because of that, Google is releasing it to vetted cyber defenders through its Fair Wind program first and has given no date for general availability. All of these figures come from Google and Artificial Analysis, and Matthew Berman has not tested the model himself. Separately, Nate B. Jones suggested giving a desktop agent a single prompt to self-audit against the "Black October" wave of AI-accelerated exploits, but he never says what Black October actually includes.
Why It Matters
A one-point lead on the index is within noise. What matters to buyers is cost per completed task and when they can actually get the model. Carbon's launch price of $2/$10 per million tokens rises to $4/$20 after an unstated period, and it uses about 123K tokens per task. GPT-6.1 uses about 68K tokens per task and still costs the least per task. Gating release by capability is now a precedent: access to frontier models can depend on vendor vetting, which favors routing across several vendors over roadmaps tied to one model. Jones's tactic helps individuals but is not an enterprise control as presented. Giving an agent broad access is itself a privileged action that is exposed to prompt injection, and its findings rest on the model's own knowledge, not a vetted vulnerability feed.
Worth Raising With Customers
- Don't plan production work on Carbon yet. Compare candidate models on cost per completed task using the customer's own workloads, and run the comparison again once Carbon is generally available and post-launch pricing is public.
- The personal exposure of executives and key engineers is a corporate attack surface. Offer agent-driven exposure scans that are sandboxed, tightly scoped and checked by a human, not ad hoc agents running on laptops that hold sensitive data.
- Security teams may get early access to Carbon through Fair Wind before developers do, so customers with a security operations function should check whether they qualify.