OpenAI Unveils GPT-5.4-Cyber for Defensive Cybersecurity
- tech360.tv
- Apr 15
- 1 min read
OpenAI has unveiled GPT-5.4-Cyber, a variant of its latest flagship model fine-tuned specifically for defensive cybersecurity work. This follows rival Anthropic's announcement of its frontier artificial intelligence model Mythos a week prior.
Anthropic's Mythos is being deployed as part of "Project Glasswing," a controlled initiative. Under this program, select organisations are permitted to use the unreleased Claude Mythos Preview model for defensive cybersecurity purposes.
This Anthropic model has found "thousands" of major vulnerabilities in operating systems, web browsers, and other software. OpenAI, creator of popular chatbot ChatGPT, stated that GPT-5.4-Cyber will initially be rolled out on a limited basis.
It will be available to vetted security vendors, organisations, and researchers because of its more permissive design. The company is also expanding its Trusted Access for Cyber (TAC) program.
This expansion will reach thousands of verified individual defenders and hundreds of teams protecting critical software. OpenAI is adding new tiers to its TAC program, which was launched in Feb.
Higher levels of verification will unlock more powerful capabilities for users. Users approved for the highest tier will gain access to GPT-5.4-Cyber.
This model has fewer restrictions on sensitive cybersecurity tasks, such as vulnerability research and analysis.
OpenAI unveiled GPT-5.4-Cyber, a model fine-tuned for defensive cybersecurity, which is being rolled out on a limited basis.
The rollout is limited to vetted security vendors, organisations, and researchers.
The company is expanding its Trusted Access for Cyber program with new tiers.
Source: REUTERS
