17:19
2026-09-21
dev.to
ai-agents
We burned 40 billion tokens (~$20k) building a harness. Am I crazy?
A developer built >_Fa, an open-source agent harness written in Dart, by consuming roughly 40 billion tokens across cheap models like Kimi K3 and GLM-5.3 at a cost of about $17,000–$20,000 over three …