OpenAI Launches GPT-5.4-Cyber: AI for Vetted Defenders

19 OpenAI Launches GPT-5.4-Cyber: A Purpose-Built AI for Security Defenders One week after Anthropic’s Claude Mythos began reaching cybersecurity teams, OpenAI has answered with its own cyber-permissive model. GPT-5.4-Cyber brings binary reverse engineering, vulnerability analysis, and malware inspection to vetted…



















