diff --git a/backend/llm.py b/backend/llm.py
index d828b6d..cc509cf 100644
--- a/backend/llm.py
+++ b/backend/llm.py
@@ -1,4 +1,3 @@
-import base64
 import copy
 from enum import Enum
 from typing import Any, Awaitable, Callable, List, cast