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

techcrunch.com·Apr 30, 2026

OpenAI plans to restrict access to its new cybersecurity tool, GPT-5.5 Cyber, to select users, similar to Anthropic's approach with its tool, Mythos. This decision follows criticism from OpenAI's CEO, Sam Altman, who previously criticized Anthropic for limiting access, highlighting a growing trend of exclusivity in AI cybersecurity tools.

OpenAI is adopting a selective rollout strategy for its GPT-5.5 Cyber tool, mirroring Anthropic's approach with Mythos, by initially limiting access to "critical cyber defenders." This indicates a growing trend towards restricted access for advanced AI tools in cybersecurity, emphasizing the importance of collaboration with legitimate stakeholders to balance innovation with safety concerns. If you're involved in cybersecurity applications or infrastructure, engaging with these access programs early could be pivotal.

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