# Sei vs Gateless

*Document Intelligence · Sei vs Gateless*

> Gateless automates underwriting condition clearing inside your LOS. Sei is a fully managed, end-to-end mortgage platform that takes a file from pre-underwriting through post-close QC — and feeds it from borrower-facing voice agents.

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 through Fannie Mae’s Income Calculator, conditions clear against the Fannie, Freddie, and FHA handbooks plus your overlays with source-document citations, and the same managed platform handles pre-underwriting, Closing Disclosure automation, pre-close and post-close QC, and borrower-facing voice.

## What Gateless does

Gateless is a mortgage underwriting automation tool — its Smart Underwrite product extracts document data, calculates income, and auto-clears data-integrity checks and conditions inside the lender’s LOS.

## Sei vs Gateless

| Dimension | Sei | Gateless |
| --- | --- | --- |
| Document intake & classification | Yes | Yes |
| Income calculation (incl. self-employed) | Yes | Yes |
| Fannie Mae Income Calculator (rep & warrant relief) | Yes | Not published |
| Underwriting vs agency guidelines + overlays | Fannie, Freddie, FHA + overlays | Conforming + FHA |
| Closing Disclosure automation | Yes | No |
| Pre-close & post-close QC | Yes | No |
| Borrower voice (sales + servicing) | Yes | No |
| End-to-end, fully managed | Sales → post-close QC | Underwriting focus |
| Certifications | SOC 2 Type II + PCI DSS L1 | Not published |

_Comparison as of June 2026. Gateless: https://gateless.com/_

## Why teams pick Sei

- **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 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.

## Where Gateless is strong

- Native integrations into Encompass, Byte and Empower for in-LOS condition clearing
- Strong automation of data-integrity checks on conforming and FHA files
- Document data extraction and automated income calculation built into the underwriting step

## 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

## FAQ

**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.

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_Source: [https://www.seiright.com/comparisons/sei-vs-gateless](https://www.seiright.com/comparisons/sei-vs-gateless) · Sei AI_