Google’s newest Gemini model is taking a different route to launch.
Google unveiled Gemini 4 Carbon on October 28, introducing advanced cybersecurity and software engineering capabilities designed to identify vulnerabilities, validate exploits, and generate patches. The company is initially giving selected cybersecurity defenders access through its Fairwind Program before expanding availability.
The phased rollout puts security organizations first, while developers, businesses, and Gemini subscribers await a broader release date. Eligibility depends on Google’s partner requirements, with no general-access timeline announced.
Who can access Gemini 4 Carbon?
Google is initially offering Carbon to selected cybersecurity defenders, with plans to expand access to other trusted partners. Its launch announcement confirms broader availability is planned but provides no timetable.
A paid Gemini subscription does not guarantee Carbon access. Google has not specified which consumer plans will eventually include it or whether free users will qualify. The Google Gemini Cheat Sheet explains the existing plans, features, and subscription options.
The Fairwind Program prioritizes governments, national cybersecurity authorities, critical infrastructure operators, and major technology platforms. Priority sectors include healthcare, telecommunications, energy, and financial services.
Fairwind has more than 650 partners worldwide, but Google has not disclosed how many can use Carbon. Organizations can request program access through their Google Cloud account teams, subject to checks of their security history and ethical operations. Admission does not guarantee Carbon access.
Developers outside the Carbon rollout can evaluate the generally available Gemini 4 Argon model, although access to its specialized cybersecurity capabilities is separately restricted. Google expanded Argon access on October 13 to eligible paid subscribers, developers, and enterprises.
Why Google is restricting access
Carbon can identify software vulnerabilities, assess whether they are exploitable, and generate patches, according to Google. These capabilities could accelerate defensive security work but also be misused to discover weaknesses in unprotected systems.
The risks extend beyond theoretical misuse. In September, researchers reported that AI agents helped compromise 440 PaperCut servers, illustrating how automated tools can accelerate exploitation.
Google is prioritizing vetted defenders while gathering feedback and refining safeguards. It is also participating in the US government’s voluntary pre-release model testing process, which does not constitute government certification or approval.
In Google’s reported evaluations, Carbon scored 88.2% on SEC-bench Pro for vulnerability discovery and 71% on CWE-bench for patch generation. These benchmark results do not guarantee comparable performance in production environments.
Independent evaluator Artificial Analysis ranked Carbon first on its Intelligence Index v5.0 on October 28, with a score of 59. However, the model did not lead every category, including coding and knowledge-work evaluations.
Google has announced introductory API pricing of $2 per million input tokens and $10 per million output tokens. Those rates will later double, although the introductory period’s end date remains unspecified. Published pricing does not mean general API access is available.
For now, eligible organizations can seek Fairwind consideration, while other IT teams can evaluate Argon or existing security tools. Until Google confirms wider availability, most organizations will have to rely on existing models rather than plan deployments around Carbon.
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