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Workflow
AI Document Comparison
Two versions of a document go in, and a clear report of what materially changed between them comes out.
Reading two long versions of a contract or policy line by line is slow, and a single changed date or figure is easy to miss. AI Document Comparison lines the versions up section by section and reports what changed, with the most material changes first. Old and new wording sit side by side. You set what counts as material, and a person decides the borderline calls.
- Material changes surfaced first, above formatting and wording tweaks
- Old and new wording shown side by side
- Moved clauses and shifted pages handled without false alarms
$5,500
20–30 working days
Optional maintenance $275/mo
What it is
AI Document Comparison takes two versions of the same document, such as a redline, a renewal or a resubmission, and reports exactly what changed between them, sorted by whether the change looks material. Original and new wording appear side by side, and borderline changes go to a reviewer you name.
Why businesses buy it
When a counterparty sends back a revised document, someone has to find what changed. Done by eye, that takes hours, and the one edit that matters, a new liability cap or a moved deadline, can slip through. After this build, every new version is checked against the last one and the material changes land at the top of a clear report. Your reviewers spend their time judging changes, not hunting for them. The Scope Card sets the document types, materiality rules and connected systems in writing before you buy.
Problems this solves
Spotting changes between two versions means reading both line by line
Document Comparison takes two versions of the same document, such as a redline or a renewal, and reports exactly what changed. Original and new wording sit side by side.
A small but important change hides among dozens of edits
Changes are sorted by whether they look material, so the ones that matter come first. Formatting tweaks and minor wording do not bury a changed date or amount.
Resubmitted documents are approved without anyone checking what moved
Each resubmission arriving through your intake route is compared with the earlier version. Borderline changes go to a reviewer you name before the document moves on.
A good fit if
You regularly receive a revised version of a document you've already seen, such as a contract redline, a renewed policy or a resubmitted form.
Someone currently reads both versions side by side to spot what changed, and it takes longer than it should.
You want changes sorted by whether they look material, such as a price or a date, rather than a flat line-by-line diff.
You're comfortable with borderline or unclear changes going to a person, rather than a judgment call being made for you.
Not the right fit if
You need a document checked against fixed rules, not against a previous version of itself. See AI Document Validation, a different QA job entirely.
You need contract-specific terms, obligations and renewal dates tracked across a whole library, not just two versions compared. See AI Contract Intelligence, built for that.
You have one document and need fields pulled from it, not two versions compared against each other. See AI Document Extraction.
Your documents haven't been captured anywhere consistent yet. See AI Document Intake, the stage that captures and files documents before any comparison can run.
How it works
- You send two versions of the same document, such as an original contract and its redline, or last year's policy and this year's renewal.
- Comparison aligns the two documents section by section, even when pages have shifted, rather than comparing them line by line blindly.
- Every difference is identified: added text, removed text, and changed values such as dates, amounts or names.
- Each difference is sorted by whether it looks material, so a rewritten clause or a changed price surfaces above a formatting tweak.
- A report is generated showing every material change side by side, with the original wording and the new wording next to each other.
- We test comparison against 100 real sample document pairs before launch and hand you an accuracy report on what it caught and missed.
What you provide within 72 hours
Your portal lists these the moment you order. Delivery starts the working day after everything is in and your access is checked.
- Your business information (company basics, hours and brand voice), shared during intake, or confirmation we can reuse what you gave us on an earlier order.
- At least 20 real sample document pairs for each document type Comparison should check, redacted if you need to.
- The fields or clause types that matter most when they change, so materiality can be judged consistently.
- Access to the destination system comparison reports should be written into.
- The name of the person who reviews changes the model flags as unclear or borderline.
- Admin access and API keys for every connected system, shared by adding our team as a user or creating a key you control, never by email.
- One decision-maker who can approve what counts as material and sign off at launch.
- An API key for your own AI model account (for example OpenAI or Google Gemini), created for this build with a spending limit.
The 72-hour rule. Send everything on your checklist, including access, within 72 hours of ordering so your build starts on time.
Timeline
Start
Intake verified, sample document pairs and materiality rules confirmed.
Weeks 1–2
Section alignment and change-detection logic built for your document types.
Week 3
Source and destination systems connected and report format finalized.
Weeks 3–4
100 sample document pairs processed, accuracy report shared with you.
Week 4
Your review and two rounds of changes.
Go-live
Live, handover report sent, support starts.
| Option | Delivery time | Price |
|---|---|---|
| Standard | 20–30 working days | $5,500 |
| Express | 15–25 working days | $6,450 |
| Rush | 10–20 working days | $7,450 |
What you receive at handover
- AI Document Comparison configured on one intake route and connected to your source and destination systems
- Comparison set-up for up to three document types, with changes sorted by materiality
- Side-by-side change reports and a review queue for borderline changes
- A test report from 100 sample documents, with an accuracy report
- An admin guide and a written handover report
- 30 days of post-launch support
Expected benefits and how to measure them
- Can save hours of side-by-side reading on renewals and redlines.
- Helps make sure a material change is seen before anyone signs.
- Gives you a written record of what changed between versions.
- Time to review a new version
- Time a few manual comparisons before launch. Compare with review time using the change report.
- Changes found after signing
- Log any change discovered after approval, and compare the year before launch with the year after.
- Borderline changes sent to review
- Count them each month from the review queue to see how often a person is needed.
Before you start: Time how long your team takes to compare two versions of a typical document. Note any past cases where a change was missed.
These are things to track, not promised results. Outcomes depend on your data, your team and your market.
Running costs
The build price is one-time. Running Document Comparison costs roughly $30 to $200 a month in your own accounts, covering OCR and AI usage plus storage, and it moves with how many document pairs pass through comparison each month.
AI usage during the build and testing is billed to your own accounts too, so every provider relationship stays yours, not ours.
Ask about running costsCustom requirements
If you need more than three document types, more than 25 tracked fields per type, or a second intake route than the Scope Card lists, add a note at checkout. You get a written Change Quote, and that work only starts once you accept it. Larger or bespoke projects go through the Custom AI request form instead.
Request a custom versionKeep it running
Monthly maintenance covers monitoring, fixes, updates, a health report and change hours each month, enough to adjust what counts as a material change. It starts after the 30 days of support end, bills monthly, and can be cancelled any month.
$275/mo (5% of the build price a month, includes 2 change hours)
Optional. Starts after the post-launch support period. Cancel any month.
How maintenance worksHow this compares
| Do it yourself with a SaaS tool | Hire a custom agency | Upmark Labs | |
|---|---|---|---|
| Price | A document-diff SaaS charges per comparison or per seat every month | A custom agency quotes after discovery calls | Ours is one fixed price, shown on this page before you buy |
| Scope | A document-diff SaaS shows every text change with no sense of what matters | An agency agrees scope during the project | Ours is written on the Scope Card before purchase |
| Materiality | A document-diff SaaS treats a comma and a changed price the same way | An agency build depends on what was scoped | Ours sorts changes by whether they look material |
| Delivery | A document-diff SaaS is instant to sign up but generic out of the box | An agency usually takes several weeks | Ours has a fixed delivery time shown before you buy, with faster options |
Questions about this product
How much does AI Document Comparison cost?
The fixed price for each delivery speed is shown in the price and delivery panel on this page, so you see it before you order. It covers everything on the Scope Card: section-by-section alignment for up to three document types, your materiality rules, the connection to two systems and the accuracy report before launch. Extra document types are quoted in writing first.
How is AI Document Comparison different from AI Document Validation?
AI Document Validation checks one document against fixed completeness and correctness rules. Comparison checks two versions of the same document against each other and reports what changed between them. Choose Comparison when you are tracking a redline, a renewal or a resubmission, not checking a single document for errors.
Does AI Document Comparison show every difference, or just the ones that matter?
It shows every difference it finds, but sorts them by whether they look material, so a changed price, date or clause surfaces above a formatting tweak or a reworded sentence. You set what counts as material during setup, and borderline calls go to the reviewer you named instead of being decided automatically.
How much does AI Document Comparison cost to run each month?
Running costs sit in your own accounts, and we charge nothing per comparison. Expect roughly $30 to $200 a month for OCR and AI usage plus storage, scaling with how many document pairs pass through. Long contracts with many pages cost more to compare than short forms. Monthly maintenance is optional if you want rules tuned over time.
Can AI Document Comparison handle documents where pages have shifted between versions?
Yes. It aligns the two documents section by section rather than comparing them line by line, so an added paragraph or a moved clause doesn't throw off every comparison after it. This matters most for contracts and long policies, where pagination rarely stays identical between drafts, even when the wording barely changes.
Is our document content safe with AI Document Comparison?
Yes. Every credential and connected account is shared by adding our team as a user or creating a key you control during setup, never by email, and document pairs move only between the systems you connected. Comparison reads content to detect and report differences; it doesn't store or share it elsewhere, and samples can be redacted before we see them.
How long does AI Document Comparison take to launch?
The delivery time for each speed is in the price and delivery panel on this page, counted from the day your intake is complete and access is verified. Most of the build goes into tuning alignment and materiality against real document pairs, so send a few genuine redlines or renewals together with their earlier versions.
Can I adjust what counts as a material change later?
Yes. Adjusting the materiality rules within your existing document types fits inside the monthly change hours that come with maintenance. Adding a fourth document type is a bigger change and gets a written Change Quote first, priced before work starts.
Guides on this topic
All guides Stop reading two versions side by side to spot what changed.
Order AI Document Comparison and it reports what materially changed between two document versions on a fixed delivery date. The scope above is what you get, in writing, before you pay.
Works well with
