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After dissing Anthropic for limiting Mythos, OpenAI restricts access to Cyber, too

April 30, 2026 1 min read

After dissing Anthropic for limiting Mythos, OpenAI restricts access to Cyber, too

OpenAI will begin rolling out its cybersecurity testing tool, GPT-5.5 Cyber only “to critical cyber defenders” at first.

Source: Original Article