diff --git a/litellm/proxy/response_api_endpoints/endpoints.py b/litellm/proxy/response_api_endpoints/endpoints.py
index d84b1a27793..aa5298c2cc1 100644
--- a/litellm/proxy/response_api_endpoints/endpoints.py
+++ b/litellm/proxy/response_api_endpoints/endpoints.py
@@ -456,7 +456,7 @@ async def count_response_input_tokens(
                 status_code=400, detail={"error": "model parameter is required"}
             )
 
-        if not input_data:
+        if input_data is None:
             raise HTTPException(
                 status_code=400, detail={"error": "input parameter is required"}
             )