AI article
Rebuilding the AI Stack by Hand, Part 2: Optimizing the Tokenizer
Community description: Continue Part 1 of a series on rebuilding the modern AI stack from first principles. The code and...
Dev.to | Nov 7, 2026 | Badjessa Bahoumda
Automated excerpt
How do production systems run tokenizers at scale? Production tokenizers split the text before BPE ever runs. GPT-2 uses ~50k, GPT-4 uses ~100k, and GPT-4o uses ~200k.
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