"Building a Real-Time AI Tutor with Gemini Live"

The Idea Most AI tutors are still built around one-way explanation. They deliver information, but they do not really force the learner to explain, defend, or retrieve what they know. TeachBack flips that dynamic. It is a real-time voice learning app where the user chooses a study topic, a learning mode, and an AI persona, then enters a live conversation with the tutor. Instead of passively consuming answers, the user has to talk through concepts out loud while the AI listens, challenges weak reasoning, asks follow-up questions, and scores the session at the end. The goal is to make learning active rather than passive. The Stack TeachBack is built around Google’s AI and cloud tooling. For the live conversation layer, I used the Gemini Live API with gemini-2.5-flash-native-audio-preview-12-2025. That powers the real-time voice session: the user speaks, Gemini responds with audio, and both sides are transcribed live during the session. This is what gives the app its conversational feel. F