Bailey Seeks Framework for Intervention as AI Debt Surpasses $450 Billion

The Bank of England's Governor Andrew Bailey has argued that the financial system needs a framework for intervention in case AI models go rogue. Bailey suggests that rigorous model testing should be part of the standards for deploying these models, and that the lessons learned could be written into standards covering the entire financial system.

According to Morgan Stanley's estimate, global AI-related debt issuance has reached around $450bn by early September, more than double the figure for all of 2025. The Bank's Financial Policy Committee (FPC) cites this as evidence that the financial system is increasingly dependent on AI and that its resilience can no longer be judged apart from AI progress.

Bailey frames intervention as a question about frontier models, but his proposed remedy ends with the firms that deploy these models. He suggests that a standard would set expectations for how financial firms test and use AI models, with consistency in approach across the financial system.

The FPC record notes that recent incidents have highlighted the need for greater preparedness against cyber threats. It warns that open-weight models, whose protections users can strip out or alter more easily, pose a particular risk if their capabilities catch up with closed-weight models.