140 million people learning math and science on one platform every week. That number is doing more work than anyone realizes. The entire US K-12 system has 50 million students. Khan Academy, the most famous education nonprofit on the planet, has 2 million Khanmigo users. ChatGPT has 70x that in math and science alone, and those 140 million represent roughly 15% of ChatGPT’s 900 million weekly active users. Education is already one of the platform’s biggest use cases. And today OpenAI started shipping hand-curated interactive modules for 70+ topics. Pre-built visual tools for the Pythagorean theorem, Ohm’s law, compound interest. This isn’t generative AI answering questions. This is curriculum content. OpenAI is building a content library the same way Khan Academy builds a content library. The difference: Khan Academy spent 18 years reaching 2 million AI tutor users. OpenAI already has 140 million and just started adding the interactive layer. Google saw this coming. Gemini launched interactive diagrams in November. But Google has the same problem it always has in education: no student opens Gemini first. Students open ChatGPT. That’s the habit, and habits compound. OpenAI is now the largest education platform on Earth by active learners and nobody is pricing it that way. Not the market, not educators, not competitors. A $730 billion company just revealed that 15% of its product usage is education, and the response was a tweet with 100K views.