Voice AI Without the Server: Building an Interactive Tutor in 200 Lines

This article demystifies voice AI by breaking it down into three modular components—speech-to-text, language model, and text-to-speech—that can be built with free APIs and cloud services. It shows developers that sophisticated voice interactions are now accessible without expensive infrastructure or specialized backend expertise. The modular pattern reveals how to build production-grade voice applications by simply swapping components.