Backed by Y-Combinator

State of the Art
Document Intelligence

Extract text, tables, and structure from any document with our powerful OCR technology. Choose from three specialized models to match your exact needs.

Industries We Serve

Cardinal powers document intelligence across industries where precision and reliability matter most:

Medical records, insurance claims, clinical notes with handwritten notes, faxed documents, and complex forms with checkboxes and signatures.

Original Document

Healthcare document example

Extracted Data

Meet Our Models

Choose the right engine for your workflow. All three are state of the art — the only difference is speed vs. versatility vs. rigor.

Sparrow

This model is built for lightning-fast document processing. It's tuned for maximum speed and efficiency without compromising reliability, making it ideal for high-volume, everyday workflows.

Key Features

  • Blazing-fast processing
  • Handles thousands of pages per minute
  • Advanced multilingual support
  • Optimized for throughput at scale
Coming soon
Contact us

Bluejay

This model is your all-around workhorse for document intelligence. It delivers a perfect blend of speed, accuracy, and adaptability, making it the go-to choice for most business needs.

Key Features

  • Superior layout and structure recognition
  • Handles complex tables effortlessly
  • Adaptive learning across document types
  • Great at annotations
  • Balanced speed and precision for everyday use
Coming soon
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Hawk

This model is purpose-built for mission-critical accuracy. Designed for the most demanding use cases, it delivers unmatched precision and depth of understanding on highly complex documents.

Key Features

  • Ultra-high accuracy guarantee
  • Microscopic attention to detail
  • Advanced context and semantics comprehension
  • Detects barcodes, signatures, and annotations
  • For crazy blueprints, the most rigorous documents
  • Unbeatable for legal, financial, and compliance docs

Enterprise-Grade Security

Security isn't an afterthought — it's the foundation.

On-Premises Deployment

Deploy Cardinal fully within your own infrastructure for maximum control.

SOC2 & HIPAA Compliant

Certified for healthcare, finance, and enterprise-grade operations.

Enterprise Security

End-to-end encryption, RBAC, audit logging.

Flexible Output Formats

Cardinal delivers structured outputs that work immediately in your systems.

JSON Schema

Perfect for developers & API pipelines.

Markdown

Retains formatting, human-readable, documentation-friendly.

Cardinal for the Modern Enterprise

We don't just extract data — we fit into your workflows.

Plug into any system

APIs, CRMs, data lakes, analytics pipelines.

Workflow-specific solutions

Cardinal adapts to contracts, invoices, manifests, or records automatically.

Scales with your needs

From scrappy startups to Fortune 500 rigor.

Chat with our team about your specific workflow

From claims processing to regulatory audits — and see how Cardinal integrates seamlessly with your existing systems.

Contact us

Get Set Up Immediately

Whether you're a scrappy startup moving fast or a global enterprise with strict requirements, Cardinal gets you live in days — not months.

Instant API Access

Get your key and start testing in minutes.

Enterprise Integration

Our team supports full-scale rollouts with SLAs.

Developer Friendly

Clear docs, example code, and SDKs.

Pricing

Flexible Pricing for Teams of All Sizes

From early-stage startups to Fortune 500 enterprises, we offer tailored pricing plans to match your document processing needs and scale with your growth.

About Us

Hi all - Devi and Jianna here! We first met in 2023 and built our first company together, Leafpress (YC S23), an energy management platform. At its core, Leafpress parsed utility data for customers - and the hardest part, by far, was processing utility bills.

Some were handwritten, others covered in annotations, and nearly all of them were formatted completely differently. Every line item mattered, and preserving the structure was critical - otherwise, account numbers wouldn't match usage data, and things would fall apart.

We spent countless hours manually reading bills, trying every solution on the market. In the end, we cobbled together a multi-step, human-in-the-loop pipeline… and still got inaccurate results.

So we built the tool we wish we had: Cardinal - a new OCR engine born from those painful lessons. It's everything we needed back then, and everything we couldn't find anywhere else.

We're excited for you to give it a try - and we'd love to get yourfeedback! Email us at devi@trycardinal.ai or jianna@trycardinal.ai

Want to chat about your document processing challenges?