Stanford CS25 lecture notes updated: From Tokenization to Transformers

tengyuma · x · 2026-08-19

The instructor for Stanford's CS25 course (Transformers United) announced an update to the lecture notes. These notes are regarded as one of the clearest end-to-end explanations of how models like ChatGPT and Claude are built.

The curriculum covers a wide spectrum:

The notes are recommended for everyone from beginners to engineers shipping agents daily. The instructor notes that the field moves fast, so the notes remain a work-in-progress, and feedback is welcomed.

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