In a significant move for the UK's financial technology sector, digital banking leader Revolut and the London Stock Exchange Group (LSEG) have been unveiled as the latest major clients of artificial intelligence pioneer OpenAI.
Banks Turn to AI for Enhanced Security
The partnerships, confirmed on Wednesday 3 December 2025, see the $75bn-valued fintech Revolut leveraging OpenAI's technology to strengthen its defences against financial crime and improve customer service. A key component of this initiative is the integration of OpenAI's advanced large language model, ChatGPT-5, which was launched on 7 August 2025.
Revolut plans to use the AI to power its internal 'fincrime agent' and bulk up the capabilities of its customer assistant, named Rita. The company now joins a growing roster of UK banking institutions, including NatWest, OakNorth, and Zopa Bank, in adopting OpenAI's tools.
A Strategic Shift for Financial Services
Matt Weaver, Head of Solutions Engineering at OpenAI, noted that the adoption pattern is consistent across organisations of all sizes. He told City AM that AI strategies among UK and European lenders typically focus on two areas: "levelling up" digital literacy among staff and implementing major "top-down" initiatives to automate critical back-office functions.
"I think that's being driven by the huge opportunities and the amount of manual processing that has to happen today inside of business," Weaver explained, highlighting why financial services, despite a reputation for slow tech adoption, is now one of OpenAI's fastest-growing segments.
Impact on Jobs and Efficiency
The widespread integration of AI by Britain's top banks over the past year is primarily aimed at simplification and cost reduction. However, this paradigm shift has sparked concerns about workforce displacement, with Juniper Research suggesting 10% of roles could be at risk.
Weaver sought to allay fears, emphasising that the current focus is on automating tasks, not eliminating entire jobs. "I think you probably won't need people who are sat there full time wrangling spreadsheets, but those same people will actually be able to use these AI tools to be much more effective and have a much greater impact," he stated.
Concurrently, the London Stock Exchange Group announced its own enterprise-wide deal with OpenAI. Emily Prince, Group Head of AI at LSEG, said the agreement would provide all employees with access to ChatGPT Enterprise, combining "all the benefits of a secure, enterprise AI platform." This dual announcement underscores the accelerating convergence of high finance and cutting-edge artificial intelligence.
