Barclays bank expands deployment of the Claude product in operations and software development
Barclays bank is expanding its cooperation with Anthropic. By the end of 2026, it expects 50% of developers to use the Claude Code tool. The Colleague Knowledge Assistant tool is already used by over 16 000 employees, according to Anthropic.
According to an announcement by Anthropic, Barclays bank is expanding its cooperation on the use of the Claude product across its global operations. The deployment is meant to support software development, modernization of legacy systems, and operational efficiency. The bank expects that 50% of developers will use the Claude Code tool by the end of 2026, and most software engineers in 2027; this is a plan, not the current state.
The Colleague Knowledge Assistant tool has been operating since 2025 and uses the Claude product via a retrieval-augmented generation architecture. According to Anthropic, it is used by over 16 000 employees and has processed over a million searches. It helps employees of the bank's UK division find information while serving more than 20 million retail customers. According to Anthropic, this speeds up access to information and customer support.
In the Global Markets division, Claude models help classify incoming emails, fill in necessary information, and determine how they are processed further. According to Anthropic, the platform processes approximately 120 000 emails per day and reduces manual work. In this deployment, the bank applies governance rules, security controls, and human oversight. The announcement does not state a price or quantified savings.
Why it matters
The deployment connects searching for internal information, processing client requests, and software development within a single bank. At a volume of approximately 120 000 emails per day, reducing manual sorting has practical significance for operational capacity. The expansion of the Claude Code tool is meant to reach a large part of the development team, but the source does not quantify the time savings achieved or changes in software quality.
Two audiences, two different impacts
What this means
For individuals
For Barclays bank employees who use the Colleague Knowledge Assistant tool in customer support, the way of searching internal information is changing: according to Anthropic, they get answers faster.
More practical updates →For a business
Barclays bank is expanding automation of client email processing and plans wider use of AI in software development and modernization. The impact concerns operational capacity and the work of development teams; the financial benefit has not yet been quantified.
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