diff --git a/litellm/proxy/batches_endpoints/endpoints.py b/litellm/proxy/batches_endpoints/endpoints.py
index 7352e6e2085..58c8e2d4d0c 100644
--- a/litellm/proxy/batches_endpoints/endpoints.py
+++ b/litellm/proxy/batches_endpoints/endpoints.py
@@ -257,11 +257,16 @@ async def create_batch(  # noqa: PLR0915
                             file_id=response.output_file_id, model=model_param
                         )
 
-                    if hasattr(response, "error_file_id") and response.error_file_id:
+                if hasattr(response, "error_file_id") and response.error_file_id:
                         response.error_file_id = encode_file_id_with_model(
                             file_id=response.error_file_id, model=model_param
                         )
 
+                    if hasattr(response, "input_file_id") and response.input_file_id:
+                        response.input_file_id = encode_file_id_with_model(
+                            file_id=response.input_file_id, model=model_param
+                        )
+
                 verbose_proxy_logger.debug(f"Created batch using model: {model_param}")
             else:
                 # SCENARIO 3: Fallback to custom_llm_provider (uses env variables)