OpenAI introduced a preview of GPT-5.5-Cyber on Thursday to a limited number of cybersecurity defenders, as part of its “broader work to build the core infrastructure for AI.”
For more sensitive workflows, OpenAI said it is offering GPT‑5.5‑Cyber in a limited preview with stronger verification and account-level controls. The preview is not meant to significantly increase cybersecurity capability beyond GPT-5.5, however it is trained to be more permissive for security-related tasks.
This news comes after the launch of Anthropic’s unreleased AI model called Claude Mythos Preview, which works to hunt and fix software flaws in an effort to “reshape” cybersecurity, Anthropic stated.
“We are focused on providing proportional safeguards and access to empower cyber defenders to protect society, and our approach has been informed by conversations with cybersecurity and national security leaders across federal and state government and major commercial entities,” OpenAI said in …
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