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OpenAI Hands Banks a Shortcut Around Billion-Dollar Core Rewrites

AI-powered 'wrappers' allow legacy lenders to modernize their financing tools instantly, bypassing expensive and slow infrastructure upgrades.

Curated by Financing Your Way from original reporting by PYMNTS. Summary is AI-assisted and editorially reviewed — see our editorial standards.

FYWBy Financing Your Way EditorialSeptember 22, 2026

For decades, the biggest hurdle to better consumer financing has been 'legacy systems.' Many lenders still run on code from the 1970s. This is why getting a simple loan approval can sometimes take days instead of seconds. Traditionally, fixing this required billion-dollar 'core rewrites' that usually failed. OpenAI is now providing a shortcut. By using AI as a bridge between old green-screen terminals and modern web apps, lenders can automate the data transfer that used to require a human manual entry. For retailers and operators, this means the lenders you partner with can move much faster. You can expect quicker integrations between your point-of-sale system and the lender’s backend. It also paves the way for more personalized financing offers. If the lender's AI can 'read' a customer's entire history instantly, they can approve more specialized credit lines without the administrative overhead that usually kills thin-margin deals. This technology effectively turns slow, analog banks into nimble fintechs without them having to replace their entire infrastructure.

Source: PYMNTS

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