diff --git a/llm/models.py b/llm/models.py
index 8539d083..82777edb 100644
--- a/llm/models.py
+++ b/llm/models.py
@@ -16,7 +16,6 @@
     List,
     Optional,
     Set,
-    TypeVar,
     Union,
 )
 from .utils import mimetype_from_path, mimetype_from_string
@@ -25,13 +24,6 @@
 from pydantic import BaseModel
 from ulid import ULID
 
-ModelT = TypeVar("ModelT", bound=Union["Model", "AsyncModel"])
-ConversationT = TypeVar(
-    "ConversationT", bound=Optional[Union["Conversation", "AsyncConversation"]]
-)
-ResponseT = TypeVar("ResponseT")
-
-
 CONVERSATION_NAME_LENGTH = 32