Chandra

Datalab State of the Art models for Document Intelligence Chandra OCR 2 Chandra OCR 2 is a state of the art OCR model that converts images and PDFs into structured HTML/Markdown/JSON while preserving layout information. Try Chandra on Datalab Our managed platform runs an improved Chandra with higher accuracy than the open weights, zero data retention by default, SOC 2 Type 2, and custom BAAs. If you have high volume workloads, we offer a batch processing service that has processed 200M+ pages per week — we manage the infrastructure so your workloads finish on time. Get started with $5 in free credits — sign up — takes under 30 seconds — or try Chandra in our public playground. Commercial self-hosting requires a license — see Commercial usage. For on-prem licensing, contact us. News - 3/2026 - Chandra 2 is here with significant improvements to math, tables, layout, and multilingual OCR - 10/2025 - Chandra 1 launched Features - Tops external olmocr benchmark and significant improvement in internal multilingual benchmarks - Convert documents to markdown, html, or json with detailed layout information - Support for 90+ languages (benchmark below) - Excellent handwriting