OpenAI expands its cyber defense program with GPT-5.4-Cyber for vetted researchers
Reddit - Artificial Intelligence
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The company is scaling its Trusted Access for Cyber (TAC) program to thousands of verified individual defenders and hundreds of teams responsible for defending critical software. Alongside that expansion, OpenAI is releasing GPT-5.4-Cyber, a version of GPT-5.4 fine-tuned specifically for defensive cybersecurity work. submitted by /u/tekz [link] [comments]
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Originally published on April 15, 2026.
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