After Dissing Anthropic For Limiting Mythos, Openai Restricts Access To Cyber, Too

Trending 1 week ago

In Brief

Posted:

12:27 PM PDT · April 30, 2026

Image Credits:ChatGPT
  • Julie Bort

After Sam Altman trash-talked Anthropic for gatekeeping its cybersecurity instrumentality Mythos by only releasing it to prime users, he confirmed that OpenAI would beryllium doing nan aforesaid pinch its competing tool, Cyber.

Altman said successful a station connected X connected Thursday that OpenAI will statesman rolling retired GPT-5.5 Cyber “to captious cyber defenders” successful nan adjacent fewer days. OpenAI has an exertion connected its website wherever people taxable information astir their credentials and planned usage successful bid to summation access.

Cyber tin execute specified tasks arsenic penetration testing, vulnerability recognition (and exploitation), and malware reverse engineering, nan exertion implies. It’s intended to beryllium a toolkit to thief a institution find information holes and trial defenses. The fearfulness is that nan kit could beryllium misused by nan bad guys.

When Anthropic likewise restricted entree to Mythos, Altman called nan maneuver fear-based marketing. Some critics besides thought so, saying Anthropic’s rhetoric was overblown. Ironically, an unauthorized group reportedly managed to summation entree to Mythos anyway.

OpenAI says it’s moving to make Cyber much wide disposable by consulting pinch nan U.S. authorities and identifying much users with legit cybersecurity credentials.

Subscribe for nan industry’s biggest tech news

Latest successful AI

More