refac

backend/open_webui/utils/middleware.py

@@ -107,6 +107,7 @@ from open_webui.utils.filter import (
 )
 from open_webui.utils.code_interpreter import execute_code_jupyter
 from open_webui.utils.payload import apply_system_prompt_to_body
+from open_webui.utils.response import normalize_usage
 from open_webui.utils.mcp.client import MCPClient
 
 
@@ -3121,10 +3122,11 @@ async def process_chat_response(
                                 else:
                                     choices = data.get("choices", [])
 
-                                    # 17421
+                                    # 17421 - Normalize usage data to standard format
                                     usage = data.get("usage", {}) or {}
                                     usage.update(data.get("timings", {}))  # llama.cpp
                                     if usage:
+                                        usage = normalize_usage(usage)
                                         await event_emitter(
                                             {
                                                 "type": "chat:completion",