When it comes to Artificial Intelligence, "Jack of all trades" is usually the goal. But in the world of high-stakes OCR, specialization wins.
Claude 4.5 Opus by Anthropic has emerged as the clear specialist for the hardest problem in computer vision: cursive handwriting.
The "Human" Touch
Most OCR models try to match shapes to a dataset of fonts. Claude 4.5 takes a different approach—it reads like a human. It looks at the flow of the pen strokes, the pressure, and most importantly, the context.
We ran a benchmark on a dataset of 19th-century medical records:
- Tesseract: 12% Accuracy
- GPT-4o: 68% Accuracy
- Claude 4.5 Opus: 94% Accuracy
Medical & Legal Use Cases
For our legal and healthcare customers on DocsRouter, Claude 4.5 is the default routing option.
"We process thousands of handwritten nurse logs daily. Switching to Claude 4.5 via DocsRouter pretty much eliminated our manual review team overnight." — CTO, MedTech Startup
How to Route to Claude
With DocsRouter, you can set up a "Handwriting Route."
If you know a document type is likely to contain handwritten notes, just pass the model parameter:
{
"model": "anthropic/claude-4-5-opus",
"document_type": "handwritten_notes"
}Privacy First
Anthropic's commitment to not training on customer data makes Claude 4.5 the safest choice for processing sensitive PII (Personally Identifiable Information) found in handwriting.