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OpenAI’s Sam Altman says GPT-5.5-Cyber to launch for cyber defenders with focus on trusted government access

OpenAI will limit access to the toolkit to vetted users as it expands a restricted cybersecurity product that can test defenses and find vulnerabilities.

  • OpenAI CEO Altman announced on Thursday the rollout of GPT-5 and Cyber, a new tool designed for critical cyber defenders that performs penetration testing and vulnerability identification.
  • Altman previously criticized Anthropic for restricting its competing tool, Mythos, calling the tactic fear-based marketing; OpenAI is now using the same application-based access model.
  • OpenAI is consulting with the U.S. government to vet users with legitimate cybersecurity credentials, addressing concerns the toolkit could be misused by malicious actors.
  • During an appearance at Stripe Sessions, Altman discussed his management style, revealing he sends around 39,000 messages a year to OpenAI employees across multiple platforms.
  • Altman noted OpenAI is entering its third era, transitioning from a research lab chasing AGI to building a massive token factory, a shift requiring fundamentally different management skills.
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OpenAI has shared that it is working on the launch of a new cybersecurity model called GPT-5.5-Cyber, which will be available for "critical cybersecurity advocates" in the coming days, in order to protect businesses and infrastructure.

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opengovasia.com broke the news on Thursday, April 30, 2026.
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