Extend Blog
How Mercury shipped low-latency document processing for 300K+ users
Cindy Hao
March 2, 2026
Product
How We Built Composer, Our Schema Optimization Agent
Why we abandoned workflows for agents, how we learned to starve our context window, and why our optimization agent accidentally became a data quality tool.
Engineering by Gus Eggert and Richard Li. Written by Cindy Hao.
9 min read
Customers
SamaCare Customer Spotlight
How Extend supports SamaCare in their mission to transform prior authorization and help patients get to treatment faster.
Cindy Hao
2 min read
Product
Introducing Edit: A Single API to Fill Any Form Programmatically
Introducing Edit: A Single API to Fill Any Form Programmatically
Kushal Byatnal
5 min read
Product
Q4 2025 Product Releases
Q4 2025 Product Releases
Kushal Byatnal
5 min read
Customers
How Brex Reached 99% Accuracy Across Millions of Financial Documents
How Brex Reached 99% Accuracy Across Millions of Financial Documents
Kushal Byatnal
6 min read
Product
Introducing Review Agent: Re-gaining Confidence in Confidence Scores
Introducing Review Agent: Re-gaining Confidence in Confidence Scores
Kushal Byatnal
6 min read
Product
Introducing Composer: The First AI Agent for Document Processing
Introducing Composer: The First AI Agent for Document Processing
Kushal Byatnal
3 min read
Customers
How Column Tax Benchmarked Every OCR Option and Chose Extend
How Column Tax Benchmarked Every OCR Option and Chose Extend
Kushal Byatnal
4 min read
Customers
HomeLight Hits 99% Accuracy and Eliminates Manual Review with Extend
HomeLight Hits 99% Accuracy and Eliminates Manual Review with Extend
Kushal Byatnal
4 min read
