Building with Google Vertex multimodal AI

How We Built Toon World: An AI-Powered Interactive Learning App for Kids Using Google Gemini and Google Cloud A deep dive into building a real-time interleaved text, image, and voice educational experience — entirely on Google Cloud infrastructure There is a moment in every good lesson when something clicks. Not because the teacher repeated themselves louder, but because they showed you something at exactly the right moment. The word on the page and the picture in your mind aligned, and suddenly the abstract became real. That is the experience we set out to build for children aged four to eight. And the technology that made it possible — Google Gemini's interleaved multimodal output running on Vertex AI — turned out to be exactly the right tool for the job. This is the story of how we built Toon World , an interactive educational app where original cartoon characters teach children subjects like counting, the alphabet, and the solar system through AI-generated lessons that weave text a