Skip to main content

Bailey calls for AI model testing standards

18 OCTOBER 2026·2 MIN READ·1 SOURCE

Bank of England’s Bailey called rigorous model testing before and after deployment a sensible starting point. He said testing should help identify vulnerabilities and build confidence in safeguards, while warning it cannot prevent every failure.

Bailey calls for AI model testing standards

Key takeaways · 4

  • 01

    Bailey’s proposed starting point is rigorous testing both before and after AI models are deployed.

  • 02

    Testing is intended to identify vulnerabilities and build confidence in safeguards, not eliminate failures.

  • 03

    Bailey said testing should be part of deployment standards, but not a substitute for future regulation or a complete solution.

  • 04

    For financial firms, model testing could inform safe AI deployment in cyber defense, agentic trading and payments.

Testing as a deployment standard

Bailey called rigorous model testing a sensible starting point and said it should take place both before and after deployment.[1] He argued that testing should form part of standards for deploying AI models.[1] Over time, he said, standards could promote a consistent approach across the financial system and possibly the wider economy.[1] Bailey said standards could eventually promote a consistent approach across the financial system and possibly the wider economy.[1] Bailey also said progress in AI testing must accelerate.[1]

Testing can reveal risk, not remove it

Bailey said testing can help identify vulnerabilities and build confidence in safeguards.[1] He cautioned, however, that it would not eliminate AI failures and should not be treated as a complete solution.[1] Unexpected model behavior, in his view, is a reason testing is necessary, not proof that testing has failed.[1] He called for learning from incidents and near misses across AI development, deployment and use.[1] For teams evaluating assurance, his position frames testing as an ongoing way to find and learn about risks, rather than a guarantee of safe behavior.

Regulation remains a separate question

Bailey said testing should not be treated as a substitute for future regulation, and that a more formal regulatory framework may emerge over time.[1] In his view, regulation was not the right place to start.[1] The distinction matters: his proposal puts testing among the foundations for AI deployment standards, while leaving open the possibility of later formal rules.[1] Bailey also emphasized that people should retain the ability to intervene in AI systems and set boundaries for them.[1] He also said people should retain the ability to intervene in AI systems and set boundaries for them.[1]

Financial firms face a direct application

Bailey said frontier AI materially increases the scale and sophistication of cyber threats to the financial system, and that financial firms’ resilience cannot be considered separately from AI advances.[1] He said testing models used by financial firms could inform safe AI deployment in cyber defense and agentic trading and payments.[1] He also pointed to potential benefits from frontier AI, including scientific discovery, higher productivity and economic prosperity.[1] Bailey said frontier AI systems learn from human-generated information and from the products of their own reasoning.[1] He warned that a sufficiently powerful system in a self-reinforcing loop could reduce society’s ability to oversee and intervene in it.[1]

For financial-services professionals, Bailey’s remarks make testing a practical part of AI deployment and resilience planning, not a guarantee that failures will be avoided. Teams can use the distinction between testing and regulation to plan assurance work while keeping human intervention and future rules in view.

Why it matters
Story quiz

Test yourself on this story — 2 questions.

Create a free account to take the quiz, earn XP, and get a daily session built for your industry.

Take the quiz

How this developed

  1. 18 October 2026

    Bailey calls for AI model testing standards

Sources

AI fluency, one session a day, built for your work.