400K vs 2M Token Context: Hard Lessons from Enterprise AI Orchestration and Costly Single-AI Choices

https://www.mediafire.com/file/b2ii31ywhay74ha/pdf-10268-99765.pdf/file

Why context size decides whether AI saves or costs you millions I used to treat context size like a checkbox. Bigger is better, I thought. I was wrong. Context length changes the entire engineering, cost, and governance picture