Cost-Aware ML: Accuracy, Latency, Euro

Think in a triangle: accuracy, latency, and cost. For many products, stable good-enough beats brittle state-of-the-art. Use distillation, caching, and smaller specialist models. Monitor token usage per user action and cap runaway prompts via server-side guards.
Budget dashboards aligned to product metrics prevent surprises. Teams that instrument cost early move faster later.