OpenAI has confirmed that it is launching a new artificial intelligence model focusing on cybersecurity, called ‘GPT-5.5 Cyber.' The wider rollout of this model is coming in the next few weeks to a limited group of cyber professionals. Interestingly, this move comes after Anthropic’s Mythos AI significantly gained popularity. Mythos offers powerful AI capabilities to identify critical software vulnerabilities and has been restricted to a select group of users. OpenAI’s tool could emerge as a strong rival to Mythos.
According to Sam Altman, the latest AI model is a ‘frontier cybersecurity model,' built to help experts detect vulnerabilities, analyse threats, and protect critical systems. While the complete details are still under wraps, it is likely to enhance the previous models and offer more powerful tools for cybersecurity experts.
The OpenAI CEO tweeted, “We're starting rollout of GPT-5.5-Cyber, a frontier cybersecurity model, to critical cyber defenders in the next few days. We will work with the entire ecosystem and the government to figure out trusted access for cyber; we want to rapidly help secure companies/infrastructure.”
The latest GPT-5.5 Cyber follows the GPT-5.4 Cyber, which was launched a couple of weeks ago. That iteration rolled out features like binary reverse engineering, which allows cybersecurity experts to study compiled software and spot vulnerabilities without needing the original code.
The AI start-up confirmed that it is not releasing GPT-5.5 for public use. Instead, the company will provide its access only limited to a select group of researchers, organisations, and the cybersecurity teams.
