Missed OpenAI's GPT-4o Tutor? I Built the Demo They Didn't Release

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Daviduche03 · 1m ago

OpenAI never released the GPT-4o tutoring demo they showed with Sal Khan—so I built my own from scratch.

This version aims to recreate that experience: real-time, interactive tutoring (especially for math), powered by GPT-4o’s ability to understand text, images, and voice seamlessly.

GPT-4o can reason over sketches, hear your voice, and guide you step-by-step—making it ideal for personalized education. I built this to show what’s possible today, even though the official demo never shipped.

Try the demo: app.brimink.com Feedback welcome—curious what you think, and open to ideas for expanding it.

Tell HN: My 3 competitors are all super polished companies run by solo devs

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Missed OpenAI's GPT-4o Tutor? I Built the Demo They Didn't Release

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