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Fix completion_tokens on Vertex AI Gemini thinking models

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This commit is contained in:
Andrew Wesie 2025-04-21 08:57:12 -05:00
parent 62ed5b2f78
commit f87f500a49
1 changed files with 9 additions and 3 deletions
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12
litellm/llms/vertex_ai/gemini/vertex_and_google_ai_studio_gemini.py
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@ -766,14 +766,20 @@ class VertexGeminiConfig(VertexAIBaseConfig, BaseConfig):
audio_tokens=audio_tokens,
text_tokens=text_tokens,
)
completion_tokens = completion_response["usageMetadata"].get(
"candidatesTokenCount", 0
)
if reasoning_tokens:
# Usage(...) constructor expects that completion_tokens includes the reasoning_tokens.
# However the Vertex AI usage metadata does not include reasoning tokens in candidatesTokenCount.
# Reportedly, this is different from the Gemini API.
completion_tokens += reasoning_tokens
## GET USAGE ##
usage = Usage(
prompt_tokens=completion_response["usageMetadata"].get(
"promptTokenCount", 0
),
completion_tokens=completion_response["usageMetadata"].get(
"candidatesTokenCount", 0
),
completion_tokens=completion_tokens,
total_tokens=completion_response["usageMetadata"].get("totalTokenCount", 0),
prompt_tokens_details=prompt_tokens_details,
reasoning_tokens=reasoning_tokens,