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OpenAI Introduces GPT-5.5-Cyber, Sam Altman Stresses the Need to Secure Companies Quickly

OpenAI says the cyber-specific model is designed to help vetted teams with vulnerability identification, triage, patch validation and malware analysis.

  • On Thursday, OpenAI announced the limited preview of GPT-5.5-Cyber, a specialized model designed to help cybersecurity professionals identify vulnerabilities, validate patches, and analyze malware.
  • Following Anthropic's unveiling of Claude Mythos Preview last month under Project Glasswing, both firms are prioritizing a 'defenders advantage' by giving network defenders a head start against hackers.
  • OpenAI CEO Sam Altman wrote the company wants to "help companies secure themselves" quickly. Defenders must be "vetted and approved" for the Trusted Access for Cyber program.
  • The White House is weighing executive action to secure model rollouts, while the International Monetary Fund warned on Thursday these AI systems could "destabilize" the world economy.
  • Major AI labs are increasingly building dedicated models for defense-oriented work, signaling that securing digital infrastructure is becoming strategically comparable to building general-purpose chatbots across Washington and Silicon Valley.
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The technology OpenAI announced the deployment in "limited advance" of GPT-5.5-Cyber, a specialized version of its most advanced artificial intelligence (AI) model, specifically designed to facilitate the tasks of cybersecurity teams dedicated to the protection of critical infrastructure. The OpenAI entry launches GPT-5.5-Cyber to compete with Anthropic in the cybersecurity sector was first published in Digital Process.

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Politico broke the news on Thursday, May 7, 2026.
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