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OpenAI Unveils GPT-5.4-Cyber for Improving Cyber Defense With AI

·Source: Infosecurity Magazine

Updated:

Executive Summary

OpenAI’s new frontier model focused on cybersecurity comes following Anthropic’s launch of Claude Mythos Preview and Project Glasswing

Analysis

OpenAI’s new frontier model focused on cybersecurity comes following Anthropic’s launch of Claude Mythos Preview and Project Glasswing
Source Attribution

Originally published by Infosecurity Magazine on Apr 15, 2026.

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