A New York startup’s use of a Chinese AI model to rein in a rogue agent built with OpenAI technology is stoking fears that guardrails restricting U.S. AI firms from doing cybersecurity work could drive customers toward their Beijing-based rivals.The affected startup, Hugging Face, said it had turned to Zhipu AI’s open-source GLM-5.2 model last week to analyze data from the hack after leading U.S. AI models declined the task, unable to distinguish between a defender and an attacker.While the breach was caused by an autonomous agent that escaped containment, it highlighted how U.S. companies facing AI-driven cyberattacks can be…