Google's new #1 model scores 59 on a benchmark, but only cyber defenders can use it
Google announced Gemini 4 Carbon on October 28 with a leaderboard-topping score and a price list. Access, for now, goes to a subset of security defenders.
Carbon posts 88.2% on SEC-bench Pro for finding vulnerabilities and 54.8% on ExploitGym for exploiting them, and Google has already priced it at $2 per million input tokens. The catch: it is rolling out through a trusted-partner programme first, with wider release promised "as soon as possible."
A reader who tried Google's own app found no sign of the previous model either.
A security-first launch with a price list but no public release

Google DeepMind's announcement calls Gemini 4 Carbon its "strongest model with state-of-the-art cybersecurity and long horizon capabilities." Access began this week for a subset of cyber defenders and will widen gradually to more trusted partners through the Fairwind Program, while Google keeps refining guardrails before a general release.
The numbers are the pitch. Carbon ranks first on the Artificial Analysis Intelligence Index v5.0 with 59, scores 88.2% on SEC-bench Pro (vulnerability finding), 54.8% on ExploitGym (exploitation) and 71.0% on CWE-bench (patching). Google also reports 0.0% attack success on the Gray Swan indirect prompt-injection benchmark, against 0.7% for Gemini 4 Argon, and says the Chrome team measured more than 10x better patch generation than another lab's large frontier model.
Introductory pricing is $2 per million input tokens and $10 per million output tokens, rising to $4 and $20 later.
The thread: you can't use it, and you can't find the last one either
The loudest complaint was about availability. One reader described trying to follow Google's own trail:
"At this point if a Google PM handed me $100 and said "go figure out how to issue a prompt to Gemini 4 Argon" I'm only ~30% sure I could figure out how." — a Workspace user who could not find Argon in the Gemini app
Another opened the consumer site and saw older models only:
"When I open gemini.google.com I see 3.6 Flash and 3.1 Pro." — a reader checking the public Gemini site
A third, who spotted two bugs on the launch page itself (the benchmark link pointed to a page that did not list Carbon, and the screen reader read "[[duration]] minutes"), argued the announce-first pattern hands rivals a target:
"…now everyone knows what exactly they need to release eval results wise to beat Carbon." — a reader who caught the broken launch-page text
The same comment says Google fixed both bugs after it was posted.
What a score is worth before anyone can reproduce it
For a developer the practical read is narrower than the headline. Every figure above is Google's own or a leaderboard entry on a model that outsiders cannot yet call, so the first independent coding results will matter more than the launch post. Until then the only usable number is the price.
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