tech

April 30, 2026

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

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

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

TL;DR

  • OpenAI is introducing a new cybersecurity testing tool called GPT-5.5 Cyber.
  • The tool will initially be available only to "critical cyber defenders."

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