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Security·2 min read

OpenAI Launches GPT-6 Cyber to Help Researchers Find Security Flaws

OpenAI has unveiled GPT-6 Cyber, a model for vetted security researchers that it says found 948 potential Linux kernel issues and 81 new Firefox flaws.

Security researcher analyzing source code for vulnerabilities on a monitor with an abstract AI network overlay.
Image: t3n Magazin

OpenAI has introduced GPT-6 Cyber, a new AI model designed to help security researchers uncover and fix software vulnerabilities. It is part of the "Daybreak Red" cybersecurity program, which only authorized organizations can access. According to the company, the model improves substantially on its predecessor, GPT-5.6 Cyber.

OpenAI says the model has already surfaced 948 potential problems in the Linux kernel and 81 previously unknown security vulnerabilities in the Firefox browser. The company puts the cost of the Linux search at roughly $1.2 million.

A warning from the field

The risks of frontier models are illustrated by Max Justicz, co-founder and CTO of the startup Charge Robotics. Using OpenAI's GPT-5.6 Sol, he says he found a code flaw that could have let attackers take control of servers running Ubuntu. He had discovered an earlier bug in the same codebase and simply asked the model to find ones just as bad or worse. "Within two hours it gave me this result," he said, describing the flaw as deeply nested and hard for a human to find.

Justicz reported the issue to the Debian project, which maintains the software and has since released a patch. There is no evidence so far that the vulnerability was exploited. He is part of the "Daybreak Blue" program, which gives AI developers access to powerful frontier models. In a thread on X, he wrote that people should expect some extremely wild bugs to be found and exploited in the coming months.

Funding and criticism

OpenAI says it will expand the Daybreak programs and give more security researchers powerful tools, arguing that organizations have only a limited window to fix flaws before hackers exploit them. The company also announced $1 billion in grants for cybersecurity experts working on critical infrastructure such as power grids and water systems. Researcher Eric Wallace said OpenAI is currently providing a significant share of its frontier compute free of charge to find and fix flaws in open-source code.

Critics nonetheless argue the lab is not doing enough to support organizations and researchers. TechCrunch calculations suggest OpenAI may have spent around $6 million on the Navier-Stokes problem alone, an effort that solved no real-world issue and drew the ire of the mathematics research community.

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Tags:openaigpt-6 cyberdaybreak redcybersecurityvulnerabilitieslinux

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