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

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

The first StrictlyVC of 2026 hits SF on April 30. Tickets are going fast. Register now. The first StrictlyVC of 2026 hits SF on April 30. Tickets are going fast. Register now. TechCrunch Desktop Logo TechCrunch Mobile Logo LatestStartupsVentureAppleSecurityAIApps EventsPodcastsNewsletters SearchSubmit Site Search Toggle Mega Menu Toggle Topics Latest After Sam Altman trash-talked Anthropic for gatekeeping its cybersecurity tool Mythos by only releasing it to select users, he confirmed that OpenAI would be doing the same with its competing tool, Cyber. Altman said in a post on X on Thursday that OpenAI will begin rolling out GPT-5.5 Cyber “to critical cyber defenders” in the next few days. OpenAI has an application on its website where people submit information about their credentials and planned use in order to gain access. Cyber can perform such tasks as penetration testing, vulnerabili

Source: https://techcrunch.com/2026/04/30/after-dissing-anthropic-for-limiting-mythos-openai-restricts-access-to-cyber-too/