In short: Choosing a credit risk model partner is easier to get right when a lender asks specific, direct questions upfront, rather than relying on a general pitch. These ten questions cover how the model fits the lender's own book, what happens after go-live, and what the relationship looks like over time.
Most credit risk model vendors will tell a lender what they want to hear. The pitch decks tend to sound similar: better decisions, more data, smarter risk. What separates a genuinely good fit from a vendor that sounds good in a meeting is usually revealed by the specific questions a lender asks, not the answers a vendor volunteers. When comparing credit risk models, drilling down into the details matters.
A vendor's answer to a direct, specific question tells a lender far more than a polished pitch ever will. The questions below are designed to get past general claims and into the details that actually matter once the relationship is underway.
1. How is the model built around our specific loan book, rather than a generic population?
This is the question that separates a lender-specific model from an off-the-shelf score wearing different branding. A vendor should be able to explain, in plain terms, how their approach reflects your actual borrowers and lending patterns, not just a broad market average.
2. What does support look like after go-live?
Implementation is only the beginning. Ask what ongoing model monitoring and support actually involves, who you'll be working with, how often, and what triggers a proactive check-in versus waiting for the lender to raise an issue.
3. How long does implementation typically take, end to end?
Get a realistic timeline, not just a best-case one. Ask what's assumed in that timeline and what could extend it, so you're comparing like for like across vendors.
4. What do we need to change about our existing systems to use this?
A model that requires ripping out and replacing core lending infrastructure is a very different proposition to one designed to sit alongside what you already have. Ask specifically what integration involves.
5. How is model performance monitored and reported back to us over time?
Ask how you'll know the model is still doing its job well six months or a year in, and in what format that gets communicated to your team.
6. Who owns the model outputs, us or the vendor?
This affects how much control your team retains over decisions, and what happens if the relationship ever ends.
7. What happens if our loan book or strategy changes significantly?
Lending books evolve. New products launch, target markets shift, growth accelerates or slows. Ask how the model and the relationship adapt when that happens.
8. Can we see how the model explains its outputs to our own team?
A credit risk model your own team can't explain to each other is one they won't fully trust. Ask for a concrete example of how a model output would be communicated internally, not just a general claim about explainability. Understanding model governance and implementation ensures the model performs reliably and meets regulatory expectations.
9. What does pricing look like as our book grows?
Understand how the commercial arrangement scales, so there are no surprises as your lending volume increases.
10. What's the exit path if we ever want to change providers or bring this in-house?
A confident vendor should be able to answer this clearly. If the answer is vague or evasive, that's worth noting.
These questions work best asked directly and specifically, rather than folded into general conversation. Consider sending them to a shortlist of vendors in writing ahead of a meeting, so you can compare specific answers side by side rather than general impressions after the fact.
We're used to fielding questions like these, because they're the ones that matter most once a lender-specific model is actually in use. Our models are built around each lender's own loan book, cover underwriting, offer setting, servicing, and portfolio monitoring, and come with ongoing support rather than a one-off delivery.
If you're working through this list with your own shortlist of vendors, we're glad to answer these questions directly, and to point out where our approach differs from a generic score.
