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BPE Tokenization: A Trailing Space in My Prompt Broke 41 of 300 Labels

I spent an evening blaming a quantized 8B model for being dumb. It was classifying support tickets into four labels, and roughly one answer in seven came back as garbage: a double space, a capitalized label, a stray newline, half a word. I tried a bigger quant, a lower temperature, a stricter instr…

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  1. 2026-10-26 23:54 · DEV Community — Machine Learning
    BPE Tokenization: A Trailing Space in My Prompt Broke 41 of 300 Labels

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