Leasey
Solution

Document Intelligence

Pipelines that turn unstructured documents into structured data your systems can use.

Extract, classify, summarize — at scale

Invoices, contracts, clinical notes, intake forms — the data is there, the problem is getting it out. We build extraction and classification pipelines that combine vision models, LLMs, and deterministic validators to produce structured output with measured accuracy.

Outcomes

>95%
field-level extraction accuracy
90%
reduction in manual entry
Days
to backfill years of archives
How we build it

Our approach.

01

Sample & schema

Collect a representative sample across every variant in the wild. Define the target schema — what fields, what types, what's required vs. optional.

02

Parse + extract

Layout-aware parsing for structure, then LLMs with structured output for extraction. Strong typing at every boundary.

03

Validate & route

Regex, cross-field, and business-rule validators run on every extraction. Low-confidence items go to a human review queue with the original doc attached.

04

Backfill + monitor

Historical archives get processed in parallel batches. Production traffic is sampled continuously to catch drift before it hurts.

Capabilities

What you get.

Layout-aware parsing for PDFs, scans, and forms
Schema-constrained extraction with validation
Classification and routing by document type
Summarization with configurable length and style
Confidence scoring and human review queues
Backfill jobs for historical archives
What it looks like

Production-shaped, from day one.

extract.ts
// Schema-constrained extraction with validation
const doc = await parse(file, { layout: true })

const record = await extract(doc, {
  schema: PatientIntakeSchema,   // zod schema
  model: "gpt-4.1",
  temperature: 0,
})

const validation = validate(record, {
  cross: patientRules,
  required: ["patient_id", "dob", "allergies"],
})

if (validation.confidence < 0.9) {
  queueForReview(record, doc, validation)
}
Architecture

A proven shape for this solution.

We adapt it to your cloud, data, and compliance requirements. Nothing here is boilerplate — every layer is justified by the numbers.

01
Ingestion from S3, SharePoint, email, upload
02
OCR and layout analysis (Textract, Document Intelligence)
03
LLM extraction with JSON schema / structured output
04
Validation layer (regex, cross-field, business rules)
05
Review UI for low-confidence items
Use cases

Where this shows up.

  • Healthcare intake and record mapping for patient chat
  • Contract review and clause extraction
  • Invoice and receipt processing
  • Research paper and report summarization
Stack

What we use.

We’re not religious about tools. We pick what fits your constraints and team.

AWS Textract
Azure Document Intelligence
OpenAI Structured Outputs
Anthropic Tool Use
Unstructured.io
LlamaParse
In production

Shipped examples.

Healthcare

Healthcare patient data mapping & health information chat

Mapped and normalized patient data to power a grounded chat experience where patients can ask questions about their own health information — safely.

AWS BedrockAnthropic ClaudepgvectorLangGraphLangfuse
Common questions

What teams usually ask.

What accuracy can we expect?

+

>95% field-level on typical business documents after tuning. Accuracy depends heavily on document variance — we report it honestly per field, not as an overall headline number.

How do you handle low-confidence extractions?

+

Configurable confidence thresholds route items to a human review queue. Reviewed items become training signal for prompt and schema refinement.

Can this run on-prem or in a private VPC?

+

Yes. For sensitive data (healthcare, legal, finance) we deploy into your VPC with private model endpoints via Bedrock, Azure OpenAI, or Vertex.

Ready to accelerate your tech growth?

Schedule your free consultation today and let's discuss how we can help your business scale efficiently.

Tech growth illustration
Ready when you are

Let’s ship your AI system.

Whether you’re scoping a new LLM product, hardening an existing one, or standing up the infra behind it — we’ll map the shortest path to production.

Email the teamOther ways to reach us