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[Model Runner V2] Fix openai.InternalServerError: Error code: 500 - 'list index out of range' #45467

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Merged
vllm-bot merged 1 commit into from
Jun 13, 2026
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[Model Runner V2] Fix openai.InternalServerError: Error code: 500 - 'list index out of range' #45467

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2 changes: 2 additions & 0 deletions vllm/v1/worker/gpu/sample/states.py
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Original file line number Diff line number Diff line change
Expand Up @@ -56,6 +56,8 @@ def add_request(self, req_idx: int, sampling_params: SamplingParams) -> None:
num_logprobs = sampling_params.logprobs
if num_logprobs is None:
num_logprobs = NO_LOGPROBS
elif num_logprobs == -1:
num_logprobs = self.vocab_size
self.num_logprobs[req_idx] = num_logprobs

def apply_staged_writes(self) -> None:
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