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Story summary
- OpenAI briefed U.S. federal agencies and Five Eyes countries on its new defensive cybersecurity model GPT-5.4-Cyber, which was unveiled last week.
- OpenAI demonstrated GPT-5.4-Cyber to about 50 cyber defense practitioners in Washington, D.C.
- The company plans a limited rollout to vetted security vendors and organizations.
- OpenAI is starting briefings with Five Eyes members to facilitate access to the model.
- Cybersecurity is increasingly seen as a critical area for AI development.
