Hailuo vs. in-house script for invoice parsing - accuracy and cost comparison.

Just wrapped up a pretty deep dive on this for our team. We've been using a homegrown Python script with Tesseract for invoice parsing for years, but the maintenance and accuracy gaps were killing us. 😅

Decided to test Hailuo's document parser head-to-head against it. Here's the quick take:

**Accuracy (on a sample of 50 vendor invoices):**
* **Our old script:** ~70% accuracy on key fields (total amount, date, invoice #). Struggled badly with new formats.
* **Hailuo:** ~95% accuracy. Handled layout changes and even messy scanned PDFs way better.

**Cost Comparison (Monthly):**
* **In-house script:** ~$0 in direct API costs, but **~5 hours/week** of dev time for fixes & training = ~$1.5k/month in engineering time.
* **Hailuo:** Pay-as-you-go API cost. Our volume runs about **$200-$300/month**. Zero dev maintenance.

The switch was a no-brainer for us. The real cost was always the hidden dev time. Now the team just gets reliable data, and I'm not constantly tweaking regex patterns.

Anyone else made a similar move from DIY to a service like this? Curious about your results.

— Jason