Document AI That Hits 95%+ Accuracy

Document AI & Automation

Replace document-triage teams with hybrid OCR + LLM pipelines. Invoices, medical records, contracts, claims — extract, classify, route, and verify automatically.

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Every business runs on PDFs, scans, and forms — and most of them are still being keyed in by hand. We build document pipelines that read invoices, parse contracts, extract medical records, and verify insurance claims with 95%+ field-level accuracy on real-world documents (not the cherry-picked demos).

We've learned the hard way that pure OCR plateaus at ~80% accuracy on messy real-world inputs and pure LLM extraction is too expensive to run at enterprise scale. Our hybrid architecture combines OCR for layout understanding with LLM-based reasoning for semantic extraction — backed by an active-learning human-in-the-loop layer so the system gets better every month instead of drifting.

Why teams hire us for this

The four things you'll get from a Niche.dev engagement on document ai & automation.

Hybrid OCR + LLM accuracy

Layout-aware OCR for structure, LLM for ambiguous fields, human review only on low-confidence edges. Average production accuracy: 95–98% per field on real documents.

HIPAA-eligible by default

Every healthcare pipeline runs on BAA-covered model providers with on-the-fly PHI redaction, encrypted at-rest storage, and full audit trails ready for compliance review.

Real cost models, not 'AI magic'

We tell you the per-page cost upfront and design for it. Most pipelines run $0.02–$0.10 per page including human review on the long tail.

Active-learning loop

Every human correction feeds back into the model's prompt or fine-tune set. Accuracy goes up month-over-month instead of drifting down.

What we build

Concrete systems we've shipped in this space. Not a roadmap — production deployments.

Real numbers, real production

Aggregate metrics from Niche.dev document ai & automation deployments.

97%

Field-level accuracy on production invoices

60×

Faster than manual data entry

4 hr → 4 min

Insurance verification turnaround

HIPAA

Eligible architectures shipped

How an engagement runs

Predictable, milestone-based, no open-ended retainers. You see real progress every two weeks.

Document audit

Send us 100–200 representative documents. We benchmark accuracy of off-the-shelf tools vs. a proposed hybrid pipeline and quantify the long tail before we build anything.

Pilot pipeline

Three-week build of an end-to-end pipeline for one document type (e.g., invoices). You see real per-page costs and accuracy numbers on your real documents, not benchmark sets.

Integration and rollout

We wire it into your ERP / EHR / DMS, build the human review UI, and start with a low-stakes document type. Phased rollout with confidence-threshold gates.

Tuning and expansion

Monthly accuracy reviews, prompt and fine-tune updates, and progressive coverage of new document types. Most clients hit 5+ document types in the first year.

The stack we work in

We bring opinions but we meet you where you are. These are the tools we use most for document ai & automation.

AWS Textract / Azure Form Recognizer OpenAI GPT-4o / Anthropic Claude Tesseract OCR pdfplumber / PyMuPDF pgvector / Pinecone Python FastAPI PostgreSQL S3 / GCS

Real document ai & automation we've shipped

Every one of these is a production system. Click through for the full case study.

Frequently asked questions

The questions every prospect asks before working with us.

Why not just use AWS Textract or Azure Form Recognizer?
We use them — as the OCR layer. They top out at 75–85% accuracy on messy real-world documents because they don't understand semantic context. Our hybrid architecture layers an LLM on top to handle the ambiguous 15–25%, hitting 95%+ overall.
Can you handle handwritten documents?
Yes, with caveats. Modern OCR plus LLM cleanup handles cleaner handwriting at ~85% accuracy. Truly messy handwriting (doctors' notes, hand-filled forms) routes to human review with the AI as a first-pass assistant.
How does HIPAA compliance work in practice?
We use BAA-covered model providers (Azure OpenAI, AWS Bedrock, Google Vertex), redact PHI from prompts before they're sent to any LLM, and run the whole pipeline inside your VPC. Full audit trail of every document touched, by whom, when.
What's a typical per-page cost?
Pure OCR: $0.001–$0.01. Hybrid OCR + LLM extraction: $0.02–$0.10 depending on document length and how many fields you need extracted. Human review on the low-confidence tail adds another $0.05–$0.20 per reviewed page.
How long until we see ROI?
Most invoice / claims / verification pipelines pay back in 2–4 months on labor reduction alone. Document-type expansion compounds the ROI over the first year.

Done with manual document entry?

Send us 100 representative documents. We'll benchmark current accuracy vs. a proposed hybrid pipeline and send back a real cost-and-accuracy projection — no slideware.

Email Nick directly