mej7.com — free interactive lab to learn how AI works
mej7.com is a free educational website with interactive visualizations that explain how text becomes tokens, embeddings, attention, transformer layers, and generated answers. It is for beginners, students, and curious learners — no payment for the browser-based lessons. Content is available in English and Albanian (Albanian home).
About the project
What it is: a single-page interactive lab with three tracks — Beginner, Intermediate (tokens, embeddings, Neural Network Lab, attention, training, quiz), and Advanced (backprop, KV cache, MoE, RLHF, quantization).
Who it is for: people who want to understand how AI / language models work, in plain language with visuals.
What makes it different: step-by-step interactive diagrams rather than text-only tutorials; structured topics documented in the repository (content/roadmap.json).
FAQ
Is it free?
Yes. Educational content in the browser is free. Optional signup can sync progress (see backend in the repository).
Do I need to code?
Not for Beginner or most of Intermediate. Advanced assumes interest in math and code concepts.
Is this an official OpenAI site?
No. Independent teaching project; visuals are illustrative, not production model weights.