diff --git a/zhipuai/api_resource/videos/videos.py b/zhipuai/api_resource/videos/videos.py
index 8ea4698..e033d80 100644
--- a/zhipuai/api_resource/videos/videos.py
+++ b/zhipuai/api_resource/videos/videos.py
@@ -47,8 +47,8 @@ def generations(
             timeout: float | httpx.Timeout | None | NotGiven = NOT_GIVEN,
     ) -> VideoObject:
 
-        if not model and not model:
-            raise ValueError("At least one of `model` and `prompt` must be provided.")
+        if not image_url and not prompt:
+            raise ValueError("At least one of `image_url` and `prompt` must be provided.")
         body = deepcopy_minimal(
             {
                 "model": model,
@@ -91,4 +91,4 @@ def retrieve_videos_result(
                 extra_headers=extra_headers, extra_body=extra_body, timeout=timeout
             ),
             cast_type=VideoObject,
-        )
\ No newline at end of file
+        )