Switching from closed-source to GLM 5.2 and Kimi 2.7, plus adding smart routing and caching, cuts AI costs in half — Brian Armstrong's case shows that large model selection cannot rely solely on reputation; engineering optimization is where the real value lies.

Coin Circle News: Coinbase CEO Brian Armstrong said the company reduced its AI spending by nearly half as Token usage increased by switching the default AI model to open-source models such as GLM 5.2 and Kimi 2.7, and combining intelligent model routing with caching optimization.