How Shopify built an AI stack that doesn't care which models survive (opens in new tab)

Shopify built an LLM proxy that gives every engineer access to multiple AI providers — with automatic failover when any one of them goes down, changes, or disappears. , Shopify's engineers didn't go into panic mode. The proxy shifted them to Claude Opus or GPT 5.5 automatically, without interrupting their workflows. “Fable looks amazing; we used it of course,” Farhan Thawar, Shopify’s head of engineering, . “When a model comes and then it goes, or it could be as innocuous as an update, the pr...