Update app.py

app.py

@@ -100,12 +100,31 @@ def refresh_models():
     """
     global text_models, free_text_models
     global embedding_models, free_embedding_models
-    
+
     text_models = get_all_models(FREE_MODEL_TEST_KEY, "chat")
     embedding_models = get_all_models(FREE_MODEL_TEST_KEY, "embedding")
     free_text_models = []
     free_embedding_models = []
 
+    ban_models_str = os.environ.get("BAN_MODELS")
+    ban_models = []
+    if ban_models_str:
+        try:
+            ban_models = json.loads(ban_models_str)
+            if not isinstance(ban_models, list):
+                logging.warning(
+                    "环境变量 BAN_MODELS 格式不正确，应为 JSON 数组。"
+                )
+                ban_models = []
+        except json.JSONDecodeError:
+            logging.warning(
+                "环境变量 BAN_MODELS JSON 解析失败，请检查格式。"
+            )
+            ban_models = []
+    
+    text_models = [model for model in text_models if model not in ban_models]
+    embedding_models = [model for model in embedding_models if model not in ban_models]
+
     with concurrent.futures.ThreadPoolExecutor(
         max_workers=10
     ) as executor: