NatWest’s AI Revolution: From Customer Service to Code, Banking Gets a Tech Overhaul

NatWest Group is making waves in the financial world by embedding artificial intelligence into the very fabric of its operations. In a bold move that signals the future of banking, the UK-based banking giant has scaled up AI across customer service, wealth management, software development, and fraud prevention—transforming how it serves customers and how its employees work.

According to Scott Marcar, NatWest’s Chief Information Officer, 2025 marked the first year AI systems were deployed at scale across the organization. The goal? To supercharge productivity, deepen customer engagement, and future-proof the bank’s technology infrastructure.

Generative AI Takes Center Stage in Customer Service

NatWest’s digital assistant, Cora, has undergone a major AI upgrade. What started with just four customer journeys powered by generative AI has exploded to 21, enabling faster resolutions and reducing the need for human intervention. But that’s just the beginning.

This year, 25,000 customers will gain access to a new agentic financial assistant within Cora, built on OpenAI’s cutting-edge models. Customers can now ask natural language questions about their recent transactions and spending habits—all from the NatWest app. The next phase? Voice-to-voice interactions that capture tone and conversational nuance, allowing customers to report suspected fraud and manage related cases seamlessly.

Internally, the impact has been staggering. In the retail division alone, AI-powered tools for automated call summaries and complaint drafting have saved over 70,000 hours of staff time. These tools generate summaries of customer calls, streamlining written responses to complaints and freeing up employees for higher-value work.

Every Employee Gets a Copilot

NatWest isn’t just rolling out AI for customer-facing roles. All 60,000 employees now have access to AI tools, including Microsoft Copilot Chat and the bank’s proprietary large language model. More than half of staff have gone beyond basic training, embracing the technology to boost their productivity and creativity.

Wealth Management Gets a Time-Saving Boost

In NatWest’s private banking and wealth management operations, AI is revolutionizing document management. Relationship managers juggle notes, meeting summaries, and correspondence to understand clients’ circumstances. Now, AI generates summaries of meetings and documents, slashing the time needed to review and record information. The result? A 30% increase in face-to-face client time, allowing advisers to focus on giving advice rather than drowning in administration.

AWS Cloud Powers the AI Engine

All these AI-driven changes are built on a foundation of modernized data infrastructure. NatWest has restructured its data estate to create unified customer views and migrated workloads to Amazon Web Services (AWS), simplifying legacy systems along the way. This move ensures scalable computing capacity and seamless access to data—critical for the summarization tools and conversational systems powering customer service.

Software Development Gets an AI Co-Pilot

AI isn’t just transforming customer interactions—it’s rewriting the code behind the scenes. NatWest’s 12,000 engineers now use AI coding tools, with AI generating over a third of the company’s code. This includes drafting, reviewing, and testing software. In 2025, NatWest hired nearly 1,000 graduate software engineers in India and the UK, signaling its commitment to scaling AI-driven development.

Trials of agentic engineering in financial crime units led to a tenfold increase in productivity. NatWest plans to expand these practices across the organization, aiming to build and iterate systems faster than ever before.

AI-Powered Fraud Prevention

NatWest is also leveraging AI for fraud detection and risk monitoring. Advanced analytics identify unusual activity and alert customers when risk is detected, adding an extra layer of security to the banking experience.

Governance and Ethics in the Age of AI

With great power comes great responsibility. NatWest has established an AI research office focused on emerging technologies like audiovisual conversational systems and proprietary small language models. The bank has also formalized governance through an AI and Data Ethics Code of Conduct and is participating in the Financial Conduct Authority’s Live AI Testing programme.

The Bottom Line: AI Is Now Core to NatWest’s DNA

From customer service to code, AI is no longer an experiment at NatWest—it’s embedded in workflows across the organization. The scale of deployment, covering tens of thousands of employees and a growing proportion of customer interactions, signals that AI is now part of NatWest’s operating model, not just an experimental add-on.

Tags: NatWest AI, banking technology, generative AI, customer service automation, wealth management AI, software development AI, fraud detection, Microsoft Copilot, OpenAI, AWS cloud, AI ethics, financial technology, agentic AI, productivity boost, digital transformation

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