Anthropic and OpenAI’s cyber-capable AI models may still require significant human expertise to operate effectively, according to new findings from users testing the systems in real-world environments. The new phase of AI-powered cybersecurity may depend less on fully autonomous hacking and more on how effectively humans can direct, validate and operationalize increasingly powerful systems. When Anthropic unveiled Mythos Preview to the world, it warned that the model was so powerful that it found tens of thousands of bugs spanning nearly every operating system. Third-party testing suggests that OpenAI’s GPT-5.5-Cyber is just as powerful as Mythos at finding bugs and writing exploits.

Full report : The new phase of AI-powered cybersecurity depends on how effectively humans can direct these models.