diff --git a/src/services/sora_client.py b/src/services/sora_client.py
index 2a49a44..da1eaa3 100644
--- a/src/services/sora_client.py
+++ b/src/services/sora_client.py
@@ -250,7 +250,7 @@ class SoraClient:
                     "kind": "sora"
                 }
             ],
-            "post_text": prompt
+            "post_text": ""
         }
 
         # 发布请求需要添加 sentinel token