About Our Research
Independent, Rigorous OCR & Document AI Benchmarking
OCR API Guide was founded by machine learning researchers and software architects frustrated by opaque vendor marketing and confusing multi-tiered pricing models.
Our Editorial Principles
- 1. Zero Sponsored Rankings: No provider can pay for a higher benchmark score, badge, or recommendation placement. Rankings are calculated 100% algorithmically based on our standardized test harness.
- 2. Total Pricing Transparency: We document every hidden fee, table parsing surcharge, async bucket cost, and minimum platform commitment.
- 3. Real-World Test Datasets: We don't just test pristine synthetic 300 DPI PDFs. We test wrinkly supermarket receipts, low-light mobile phone photos, and degraded cursive handwriting.
Want to submit an OCR engine?
Are you an OCR or Document AI vendor? Submit your API for inclusion in our upcoming benchmark cycle.
Contact our research lab →Explore our Methodology
Learn how we calculate Character Error Rate (CER), TEDS scores, and synchronous latency percentiles.
View methodology details →