Tech Architecture Stories

Sep 12, 2026 · Artificial Intelligence

Glean's $300M ARR Horizontal Neo-Lab: Context-First AI, Trace Learning & Waldo Model

This article analyzes Glean's evolution into a $300M ARR horizontal enterprise AI platform, detailing its context-first architecture, harness engineering with sandbox isolation, trace learning loop for continuous improvement, specialized Waldo model for search planning, private evaluation framework, and strategic comparison with vertical rival Harvey, offering five engineering takeaways for enterprise AI builders.