tutorial · HACKER NEWS RECOMMENDATION
Let's build GPT: from scratch, in code, spelled out.
Andrej Karpathy · 14 HN recommenders · 8 recommendation months
Recommended by 14 Hacker News commenters across 8 months (2023–2025).
About this video
“Let's build GPT: from scratch, in code, spelled out.” is catalogued as a tutorial from Andrej Karpathy. Its recorded topics are LLMs & generative AI and Machine learning & deep learning, with tags such as gpt, transformer, pytorch, and nanogpt. These labels offer a subject map for the video; they do not provide a transcript or establish details beyond the public export. This guide uses catalog metadata and Hacker News stance counts rather than repeating the source summary.
Audience fit: people exploring LLMs & generative AI and Machine learning & deep learning may find it relevant. The source classifies its format as tutorial and its level as intermediate; those labels describe catalog intent, not guaranteed prerequisites or a specific teaching style. Review the video itself for details before using it as a reference.
Discussion snapshot: the export records 20 comments from 14 distinct recommenders over 8 months between 2023 and 2025. Its 20 available labels count 6 contextual references, 10 recommendations, 4 strong recommendations, 0 critical mentions, and 0 jokes. Recommendation labels are more common than contextual references in this snapshot. No mention in this snapshot is classified as critical. This describes the available labels and should not be read as proof of unanimous agreement. These counts describe roles assigned to comments; they do not measure factual correctness or video quality. Each Hacker News item below links to its source comment for the full exchange.
Recorded details: the source lists Andrej Karpathy as the channel or speaker. Runtime is not included in this export. A verified YouTube publication date is not included. The first and last years above refer to Hacker News mentions, not the video's release year. No duration or release year has been guessed.
- Channel / speaker
- Andrej Karpathy
- Video duration
- Not included in the source export
- YouTube release year
- Not included in the source export
- Hacker News mention years
- 2023–2025
THREE SOURCE-BASED CONTEXT POINTS
Why Hacker News recommends it
These concise summaries are generated from real comment text, thread titles, and stance labels. They do not reproduce comment wording; the original comment stays on Hacker News.
The commenter uses the video as context in “SmolGPT: A minimal PyTorch implementation for training a small LLM from scratch”, connecting it with also, based, changing, and except.
The a recommendation in “A ChatGPT clone, in 3000 bytes of C, backed by GPT-2 (2023)” is tied to approach, attention, building, and definition; the linked thread preserves the original comment and its full context.
The commenter uses the video as context in “Building LLMs from the Ground Up: A 3-Hour Coding Workshop”, connecting it with andrej, anyway, different, and excuse.