AI article
Show HN: Building an LLM from Scratch in TypeScript
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Hacker News | Oct 14, 2026 | baraa_
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The from-scratch guide to building large language models in NodeJS and TypeScript. Start with Chapter 2 Learn how large language models actually work by building one from scratch in Node. js and TypeScript. the training loop. From scratchDataset, dataloader, attention, transformer block, GPT, and the training loop built up chapter by chapter. RunnableEvery chapter has a runnable entry point in the @node-llm/chapters package, all on GitHub. InteractiveSoonLive WebGPU demos from the @node-llm/playground package are embedded throughout.
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