Token Lab reviewed teaching references — 2026-10-26 Node.js 22+. Download an example and the modules linked beside it into one folder. Tokenizer examples also require: npm install gpt-tokenizer@4.1.0 Run: node .mjs These reproduce teaching calculations, not paper training or real hardware results. 22 standalone numeric references: review-examples.mjs (code + hand-derived expected output + acceptance criterion). Regression runner: review-check.mjs; download paper-core.mjs, academy-core.mjs and review-examples.mjs beside it, then node review-check.mjs.