OpenAI announced that its upcoming GPT-5.5 model performed on par with the heavily promoted Mythos Preview in recent cybersecurity evaluations. CEO Sam Altman criticized the hype surrounding Mythos, calling it fear‑based marketing, while reiterating that the new model will initially be available only to a select group of critical cyber defenders. The company’s Trusted Access for Cyber pilot, launched in February, continues to serve as the gateway for researchers and enterprises to test frontier models under strict safeguards. Read more →

OpenAI announced that its newest model, GPT-5.5-Cyber, will be released in a tightly controlled rollout aimed at trusted cybersecurity professionals. CEO Sam Altman said the deployment will begin within days and will be limited to a vetted group of "cyber defenders" as the company works with the broader ecosystem and government agencies to define secure access. No technical specifications have been released, but the model appears to be a specialized offshoot of the recently launched GPT-5.5. The move follows a pattern of AI firms withholding powerful models from the public amid concerns about misuse. Read more →