Artificial Intelligence
AI drafts your underwriting rules.
Only the rules decide the loan.
AI does two jobs here: it turns your guideline text into rules your team reviews and publishes, and it answers questions from those rules. It never runs on a loan file. CreditDecisionEngine decides every file with the published rules, so the same file gets the same answer every time and every condition points at the guideline behind it.
Where it helps: AI turns your guideline text into rules.
Paste the guideline
AI drafts the rules
Give AI the investor PDF, the credit box, or the change memo. Expense factor, LTV band, reserve months, each as a rule you can read and edit.
A person publishes
Review
Your team checks the draft against the guideline and turns it on. Nothing goes live until you do.
Not an AI use
Rules engine
Repricing the shelf when rates move is the rules engine, not AI.
So the decision is rules you wrote, published, and can show. AI only helps you write them faster.
Why not in the decision: same file, same rules, same answer. A model cannot promise that.
A rule is a fixed condition: FICO at or above 680, or the file refers. A model returns a probability. That one difference is why the decision runs on rules and only the drafting runs on AI.
Explore CreditDecisionEngine
From a capital markets desk
“We can add fields, update pricing, or adjust product guidelines on the fly, without waiting on development teams.”
EVP of Capital Markets, SmartFi
What lenders ask first.
Does LoanPASS use AI to underwrite loans?
No. The decision comes from rules your team wrote and published. AI helps draft those rules from your guidelines. That keeps every decision repeatable and traceable for auditors and investors.
Where does LoanPASS use AI?
Configuration. Paste a guideline or a change memo, and AI drafts the rules for your team to check and publish.
How is this different from AI underwriting vendors?
They put a model in the decision, so the finding is a score. We put AI in front of the decision, drafting rules a person approves. The file is then decided by those rules, so the finding is a guideline you can show.
Does AI make underwriting decisions faster?
Not the decision itself. CreditDecisionEngine returns the decision in real time because it is a rules evaluation, with or without AI. What AI speeds up is the setup: turning guideline text into rules so a new program or a guideline change goes live sooner.
How does rules-based underwriting hold up in fair lending review?
Fair lending review, investor due diligence, and warehouse QC each ask for the rule that produced the decision. A rules-based decision can show that rule and the guideline behind it. A score with no rule behind it cannot, which is why the decision here never comes from a model.
Why does the same file need the same answer?
Because an examiner or investor will replay last month’s file and expect the same finding. A rule is a fixed condition, so it returns the same answer on the same file every time. A model returns a probability, and its answers can move when the model is updated.
What happens when a guideline changes?
Paste the bulletin or change memo and AI drafts the rule update. Once it is published, every decision after that reads the new rule. A change that used to take a week of rule-writing takes an afternoon. Repricing when rates move is the rules engine doing its job, not an AI feature.
Can AI turn an investor guideline into underwriting rules?
Yes. Give it the guideline PDF, the credit box, or the change memo, and it drafts each condition as a rule you can read: an expense factor, an LTV band, a reserve requirement. Your team compares the draft to the guideline before anything goes live.
What is AI mortgage underwriting?
Most vendors mean a model that makes or scores the credit decision. LoanPASS does not do that. Here AI drafts and updates the rules. CreditDecisionEngine runs the rules. The rules make the decision.
Will an auditor accept an AI decision?
We never ask them to. Every decision comes from a rule you can show, change, and replay.
Bring a guideline. Watch AI draft it as rules.
Bring one program’s guideline. AI drafts it as rules, your team reads them, and we run a file against them so you see the finding and the guideline it came from.
Schedule a Demo