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[Bugfix] fix KeyError on top logprobs are special tokens #17637

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Merged
vllm-bot merged 1 commit into from
May 5, 2025
Merged

[Bugfix] fix KeyError on top logprobs are special tokens #17637

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3 changes: 2 additions & 1 deletion vllm/entrypoints/openai/serving_chat.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1111,7 +1111,8 @@ def _create_chat_logprobs(
return_as_token_id is not None else self.return_tokens_as_token_ids
for i, token_id in enumerate(token_ids):
step_top_logprobs = top_logprobs[i]
if step_top_logprobs is None:
if step_top_logprobs is None or step_top_logprobs.get(
token_id) is None:
token = tokenizer.decode(token_id)
if should_return_as_token_id:
token = f"token_id:{token_id}"
Expand Down