OpenAI is rolling out GPT-5.4-Cyber, a sophisticated cybersecurity model enhanced for threat defense, including binary reverse engineering and more lenient refusal protocols. The company is also broadening its Trusted Access for Cyber initiative to include thousands of vetted cybersecurity defenders, a strategic move following Anthropic’s recent decision to limit access to its more potent Mythos model to just 11 organizations. This development underscores a growing rivalry in the AI cybersecurity arena as both companies seek to lead in cutting-edge protective technologies.
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