In the windy hills of Sintra, Portugal, the world’s top central bankers spent much of their annual gathering wrestling with an unfamiliar policy problem: how artificial intelligence will affect the global economy and, by extension, their mandate to preserve financial stability.
AI emerged as the defining theme of the ECB’s three-day conference, surfacing in discussions that ranged from financial markets and bank lending to security, labour markets and power demand.
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🔵 Watch live: the #ECBForum on Central Banking continues with a panel on “Artificial intelligence and financial stability” with:
– @Isabel_Schnabel
– Tobias Adrian
– Sarah Breeden
– Itay Goldstein
– Torsten Slok
Follow the event https://t.co/lE5iDzMzff pic.twitter.com/BYSHUYii5V— European Central Bank (@ecb) June 30, 2026
The promise arrives with a polite warning
The tone was one of both optimism and caution. Torsten Slok of Apollo Global Management told delegates, “If AI overdelivers, it will impact financial stability. If AI underdelivers, it will impact financial stability,” capturing the uncertainty facing policymakers as AI investment accelerates.
New Federal Reserve Chairman Kevin Warsh, making his debut appearance at the forum, called the moment “the biggest time of consequence to each of our economies” in his lifetime and said the economy was in “the first to second inning of this revolution”. AI even eclipsed Warsh’s debut as the central talking point of the meeting.
The glitter, and the gamble beneath
Several speakers warned that faster automation could create fresh risks in markets and banking. University of Pennsylvania professor Itay Goldstein said advanced algorithms could coordinate “on a manipulative path of prices”, adding that such behaviour could lead to bubbles and crashes with “more significant implications for financial stability”.
Reuters also cited a Bank for International Settlements report saying the current AI investment boom, driven by expectations of large productivity gains, resembles earlier speculative episodes and may carry downside risks in the near term. One concern was that AI spending is already feeding an AI-stock rally, while another was that a rapid reversal could expose fragile valuations.
At the #ECB’s #Sintra conference, central bankers highlighted AI as the dominant unknown for financial stability—capable of inflating bubbles, enabling price manipulation, and creating supervisory headaches due to its “black box” nature. #AI #FinancialStability #CentralBanks— Tinlake (@tinlake_inc) July 1, 2026
Prudence takes the chair, for now
The technology’s effect on supervision was another recurring theme. Tobias Adrian, a senior IMF official, said supervisors face a “key supervisory challenge” because agentic loan decisions are “a little bit of a black box” and may lack explainability.
Sarah Breeden, a Bank of England deputy governor, floated the idea of some sort of insurance scheme for cyber disruption, likening it to deposit insurance.
Bank of Canada Governor Tiff Macklem struck a cautious note, saying the internet had created whole new businesses but also the dot-com bubble and warning that the market can still “get ahead of itself”.
For central bankers in Sintra, AI was no longer a distant technology debate but a live policy issue with economic, financial and regulatory consequences.
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FAQs
Q1: Why are central banks focused on artificial intelligence?
Ans: Central banks are assessing how AI could affect economic growth, employment, inflation, financial markets and overall financial stability.
Q2: What concerns did policymakers raise about AI at the Sintra meeting?
Ans: Officials highlighted risks including asset bubbles, cyber threats, opaque AI-driven lending decisions and potential disruptions to financial stability.
