Key facts
- OpenAI said ChatGPT Cyber would be available to the highest-tier users of its Daybreak Red program.
- Max Justicz used GPT 5.6 Sol through Daybreak Blue to find a severe Ubuntu vulnerability, per TechCrunch.
- The Debian Project issued a patch for the vulnerability; there has been no known evidence of exploitation.
- OpenAI said the model found 948 potential issues in the Linux kernel and 81 novel vulnerabilities in Firefox.
- Justicz said he spent about $5,000 on subscriptions and tokens to find several exploits.
OpenAI announced on November 5, 2026 that ChatGPT Cyber, a model focused on cybersecurity, would be made available to the highest-tier users of its Daybreak Red program, which gives offensive cybersecurity researchers tools for vulnerability hunting and development, according to TechCrunch.
The announcement followed a finding by Max Justicz, chief technology officer and cofounder of Charge Robotics, who used GPT 5.6 Sol, released in July, through OpenAI's Daybreak Blue program to find a severe vulnerability in code maintained by the Debian Project. Justicz told TechCrunch he aimed ChatGPT at the code and it returned the finding in 2 hours. He reported the issue to the Debian Project, which issued a patch. There has been no known evidence of exploitation.
OpenAI said the same model had been used to scan the Linux kernel and prepare patches for vulnerabilities, finding 948 potential issues, and that it found 81 novel vulnerabilities in Firefox. "Our goal is to dramatically expand Daybreak, bringing advanced security research to organizations of every size, independent researchers, and open-source maintainers," the company said in a statement.
Justicz said he spent about $5,000 on subscriptions and tokens to find several exploits, and noted that OpenAI appears to have recently limited Daybreak Blue's usefulness at finding vulnerabilities. OpenAI says "thousands" of cybersecurity professionals are participating in the Daybreak program.