Fine-tuned models keep changing EOS tokens — how do you handle it?

bayinfosys_ed · reddit · 2026-08-20

A Reddit user raises an engineering pain point: fine-tuned models downloaded from HuggingFace often change the EOS and other special tokens from the base model's defaults, making generic inference fiddly since standard tokens can't be assumed to work. They ask the community whether everyone checks the tokenizer config per model, or if there's a more automated way to detect and handle these mismatches.

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