Skip to content
Sei

Comparison · Document Intelligence

Sei vs Gateless

Gateless automates underwriting condition clearing inside your LOS. Sei runs the file end to end — pre-underwriting through post-close QC — fed by borrower-facing voice agents.

The short version

Gateless and Sei both automate the document-heavy core of mortgage underwriting: extracting data, calculating income, and clearing conditions against agency guidelines. If your goal is to clear underwriting conditions directly inside Encompass, Byte, or Empower, Gateless is a focused, well-integrated tool.

Sei runs more of the manufacturing line. Income is calculated for representation-and-warranty relief, and conditions clear against the Fannie, Freddie and FHA handbooks plus your overlays, with source-document citations. The same managed platform handles pre-underwriting, Closing Disclosure automation, pre-close and post-close QC, and borrower-facing voice.

Read the in-depth write-up: Sei AI vs Gateless

The frame

A point solution automates a step. A desk owns the outcome.

Most of the vendors on this page automate one step. The question that decides the buy is what happens when that step is done: a tool hands its output back to a queue, and someone has to pick it up. A desk holds the goal until it is reached, and tells you where it stopped.

  • You buy a step

    Extraction, or an application form, or a review pass. It runs when someone runs it, and hands the result to the next queue.

    You staff a desk

    It holds a goal across weeks, wakes when the loan moves, re-plans when the file changes, and escalates by name when it is below its confidence floor.

  • Each tool has its own copy of the loan

    So there is a reconciliation step, and a version of the file only one vendor can see.

    One live model of the loan

    A condition created by underwriting is visible to the document desk in the same instant, because there is only one of it.

  • Coverage is the sum of your vendors

    Eight vendors, eight handoffs, and the cycle time lives in the gaps between them.

    Coverage is the length of the loan

    Lead call to clear-to-close, boarding to payoff, against one version-controlled rulebook.

Sei vs Gateless, at a glance

CapabilitySei AIGateless
Document intake & classificationYesYes
Income calculation (incl. self-employed)YesYes
Fannie Mae Income Calculator (rep & warrant relief)YesNot published
Underwriting vs agency guidelines + overlaysFannie, Freddie, FHA + overlaysConforming + FHA
Closing Disclosure automationYesNo
Pre-close & post-close QCYesNo
Borrower voice (sales + servicing)YesNo
End-to-end coverageSales → post-close QCUnderwriting focus
CertificationsSOC 2 Type II + PCI DSS L1Not published

“Not published” means exactly that: we could not find it stated publicly. It is not a claim that the capability or certification is absent.

Comparison based on each vendor’s public materials as of June 2026. Competitor capabilities and claims are theirs; we aim to keep this fair and accurate — if anything is out of date or wrong, let us know.

What those rows mean

Rep-and-warrant-eligible income

Income is calculated across W-2, self-employed (Schedule C, K-1, S-corp, 1099), rental, and retirement income, with Fannie Mae Income Calculator integration — so eligible calculations earn representation-and-warranty relief and lower repurchase risk.

Cited, guideline-validated underwriting

Conditions clear against the Fannie Mae Selling Guide, Freddie Mac and FHA Handbook 4000.1, plus your investor overlays. Each item is confidence-scored and cited to the source document, so reviewers handle only true exceptions.

Closing and QC built in

Closing Disclosure automation with TRID timing and fee-tolerance checks, plus pre-close and post-close QC with agency- and investor-ready audit trails — the same platform that originated and underwrote the loan.

The case for Sei

When Sei is the better fit

  • You want income calculated for rep-and-warrant relief via Fannie’s Income Calculator
  • You need cited condition clearing plus Closing Disclosure automation and post-close QC
  • You want one managed platform from sales voice through servicing, not a single workflow

Frequently asked questions

Does Sei replace Gateless?

For underwriting, Sei does the same core work — extracting data, calculating income, and clearing conditions against the Fannie, Freddie, and FHA handbooks plus your overlays. Sei also calculates income for representation-and-warranty relief through Fannie’s Income Calculator and adds Closing Disclosure automation, post-close QC, and borrower-facing voice, so teams often consolidate several tools into one platform.

How does Sei help with reps and warrants?

Sei integrates with Fannie Mae’s Income Calculator so qualifying income can be calculated in a way that earns representation-and-warranty relief, directly reducing repurchase exposure on eligible loans.

What loan types does Sei underwrite?

Conventional, FHA, VA, USDA, jumbo/non-agency, HELOC, and non-QM — validated against the relevant agency guideline sets and your investor overlays, with confidence-scored, source-cited condition clearing.

How is borrower data handled?

Sei is SOC 2 Type II and PCI DSS Level 1 certified, deploys within private VPCs with per-customer sandboxing, and never trains on your data.

You Ain't Seen Nothin' Yet

Book a Demo

Pack up some of your complex historical files — any loan type, any investor. We run them through intake, income and condition clearing, and in 30 minutes you see every condition we created and cleared efficiently for your own team, and why.

  • Any loan type, any agency guideline or custom investor overlays.
  • Every finding cited to the guideline or document it came from

Please provide your full name so we know how to address you.

Tell us which company you represent so we can personalise our response.

Use your work email so we can connect you with the right specialist.

Which desks would you like to discuss?*

Choose the desks you’d like us to cover. Pick “Not sure yet” if you’d rather we worked it out on the call.

Roughly, so we bring the right person to the call.

Complete the verification to submit the form.