The Rise of the Prompt Router: How AI Engineering is Solving the Cost-Latency Dilemma

If you have been scrolling through your tech feed lately, you have likely noticed a massive surge in discussions around Prompt Routers. As organizations transition from deploying simple LLM proof-of-concepts to scaling production-grade enterprise applications, a sobering realization has set in: sending every single user query to top-tier, frontier models is a fast track to burning through cloud budgets.