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fix: don't skip first special token. (#1497)

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Ricardo Lu 2023-10-29 19:26:36 +08:00 committed by GitHub
parent 28b47d1e49
commit beac8dd461
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1 changed files with 5 additions and 1 deletions
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6
vllm/transformers_utils/tokenizer.py
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@ -120,7 +120,11 @@ def detokenize_incrementally(
# tokenizers (bigger = more conservative).
# Subtract 1 extra to account for the generated token.
prefix_offset = max(len(output_tokens) - 6, 0)
read_offset = max(len(output_tokens) - 1, 0)
# If the first new token is a special token, we can't skip 1 extra token
if skip_special_tokens and new_token_id in tokenizer.all_special_ids:
read_offset = max(len(output_tokens), 0)
else:
read_offset = max(len(output_tokens) - 1, 0)
else:
# Put new_token_id in a list so skip_special_tokens is respected
new_tokens = tokenizer.convert_ids_to_tokens(