OpenAI said on October 13 that the FBI had arrested a former employee in connection with a sophisticated listening device found hidden in one of its offices. Reuters reported the arrest the same day, citing OpenAI's own post about the case.

OpenAI said it used its internal AI models to help identify who planted the device and trace where it came from, then referred the matter to the FBI. The company said the employee was terminated and that it had no indications the person had inappropriately accessed or exfiltrated model weights, source code or customer data.

The FBI investigation is continuing, and OpenAI said it will keep supporting it. No further details about the device, its target or any charges were given in the initial reports.