Production-ready document processing
Parse, extract, and split your hardest documents with unmatched accuracy. Read any layout with specialized vision models, and ship reliable pipelines in minutes, not months.
Trusted by leading AI teams
Solve your hardest use cases with the most advanced document APIs. Processing millions of pages every day.
/ parse
Convert unstructured documents into LLM-ready markdown.
/ extract
Extract structured data from documents into any schema.
/ split
Segment multi-document files into individual subdocuments.
/ classify
Classify documents into pre-defined categories.
/ edit
Detect form fields and fill them programmatically.
Capabilities
- Layout detection: Advanced layout model detects tables, checkboxes, images, handwriting, and signatures on every page.
- Specialized vision models: A hybrid computer vision + vision-language model pipeline routes each element to purpose-built models.
- Multiple performance modes: Toggle between performance modes optimized for speed, cost, or accuracy.
- Handle every file: 25 file types, 100+ languages, and 4 chunking strategies — all through one API.
Production-ready document processing takes more than models.
Confidence scoring
Flag uncertainty before production. Enable a multi-pass review agent that checks every output to flag potential errors, so you detect issues before your users do.
Composer Agent: Skip manual prompt trial-and-error with an optimization agent. Upload examples and let Composer identify issues, automatically refine your schemas, and improve accuracy in the background.
Document workflows
End-to-end orchestration for complex pipelines. Build multi-step workflows that parse, split, extract, validate, and route with versioning and durability out of the box.
What leading teams say about Extend
Pedro Franceschi
CEO, Brex
Extend outperformed every solution we tested—other vendors, open source, and even foundation models. It now powers key document workflows across 30,000 customers, helping us build the most intelligent and modern financial platform out there.
Matt Hodgson
CTO, Vendr
We did a bakeoff, and Extend had the best results of any solution on the market. It eliminates an entire class of engineering problems around accuracy that we don't want to worry about.
George Ho
SR ML Scientist, Flatiron Health
We were able to replicate 6 months of work in 2 weeks (!) with Extend. We're now scaling this up across all 5 million people with cancer in our network, truly transforming our work against this disease.
Yan Lhert
Staff Engineer, Opendoor
Extend sets the bar for what all vendors should be - a best in class product and a world class team. We couldn't be happier and are deeply grateful for our relationship with them.
Gavin Nachbar
CEO, Column Tax
Extend outperformed 15 other vendors, including all major providers, on real-world docs. Their platform gives us the tooling to adapt fast, improve accuracy, and stay ahead as models evolve.
Adam Litton
Staff Software Engineer, Checkr
Extend eliminates the ongoing maintenance cost of model tuning, scoring, evaluations, and more. We're able to focus on innovating on our core experience, instead of managing the infra.
Enterprise-grade security for your data.
Self-hosted deployment
Run entirely on your infrastructure. Keep sensitive documents in-house with the same speed, accuracy, and features as our cloud.
SOC 2, HIPAA, & GDPR
Built for regulated industries. Certified with regular third-party penetration testing, and trusted by F500s in every industry.