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  • OpenAI Launches GPT-5.4-Cyber with Expanded Access for Security Teams  – The Hacker News
AttackFeed by Joe Wagner | OpenAI Launches GPT-5.4-Cyber with Expanded Access for Security Teams  - The Hacker News

OpenAI Launches GPT-5.4-Cyber with Expanded Access for Security Teams  – The Hacker News

Posted on April 15, 2026 By [email protected] (The Hacker News) No Comments on OpenAI Launches GPT-5.4-Cyber with Expanded Access for Security Teams  – The Hacker News
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OpenAI on Tuesday unveiled GPT-5.4-Cyber, a variant of its latest flagship model, GPT‑5.4, that’s specifically optimized for defensive cybersecurity use cases, days after rival Anthropic unveiled its own frontier model, Mythos.
“The progressive use of AI accelerates defenders – those responsible for keeping systems, data, and users safe – enabling them to find and fix problems  –

Read More  – The Hacker News 

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