When Models Eat the World: Supply Chain Quality for AI-Dependent Systems

When your code quality is decided by a third party's model whose behavior can change without notice, where does your quality system stand? A Quality Risk You're Probably Ignoring In February 2026, a SaaS company's customer satisfaction dashboard dropped 12% overnight. No deployment, no code changes, no config changes — everything looked normal. The engineering team spent three days tracing the issue. The culprit was an unannounced inference optimization on OpenAI's side that adjust...