diff --git a/libs/partners/openai/langchain_openai/chat_models/base.py b/libs/partners/openai/langchain_openai/chat_models/base.py
index c37625134d7..cb1b68903b1 100644
--- a/libs/partners/openai/langchain_openai/chat_models/base.py
+++ b/libs/partners/openai/langchain_openai/chat_models/base.py
@@ -2924,9 +2924,9 @@ class OpenAIRefusalError(Exception):
 
 
 def _create_usage_metadata(oai_token_usage: dict) -> UsageMetadata:
-    input_tokens = oai_token_usage.get("prompt_tokens", 0)
-    output_tokens = oai_token_usage.get("completion_tokens", 0)
-    total_tokens = oai_token_usage.get("total_tokens", input_tokens + output_tokens)
+    input_tokens = oai_token_usage.get("prompt_tokens") or 0
+    output_tokens = oai_token_usage.get("completion_tokens") or 0
+    total_tokens = oai_token_usage.get("total_tokens") or input_tokens + output_tokens
     input_token_details: dict = {
         "audio": (oai_token_usage.get("prompt_tokens_details") or {}).get(
             "audio_tokens"