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United KingdomFinance and insurance2019 – ongoing

Secure Trust Bank PLC

Explainable AI models for credit application scoring

Secure Trust Bank put explainable AI credit scoring live on two portfolios, a first for a UK lender

In progressVendor case study

Problem

Lenders want the predictive gains of machine learning in credit scoring, but regulators and risk teams need to see why a model reaches a decision. Secure Trust Bank wanted better application scoring than its traditional linear models gave.

Approach

The bank built application scoring models with Archetype, explainable AI software from Jaywing. The models went live on two of its portfolios, and the report called Secure Trust the first UK lender to do so. Jaywing signed a three-year engagement to monitor and recalibrate the models.

Results

No published figures

Takeaway

The bank reported a better-performing model than its linear baseline without publishing the size of the gain. The bad-debt reduction was a projection at the time of the report.

Categories

Business function
Finance, risk and legal
Innovation type
Process innovation
Evidence
Vendor case study

Sources

Source summaries

[1]FF News9 Dec 2019

The article reports that Secure Trust Bank deployed credit application models built with Jaywing's Archetype on two portfolios. It says the models gave a significant uplift in predictive power over a linear model, with no size given. Bad-debt reductions were described as projected only, and Jaywing will monitor the models for three years.

Full details are in the original sources.

Added 1 Nov 2026 · Updated 1 Nov 2026
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