Update app.py

app.py

@@ -134,11 +134,7 @@ def chat_completions():
         logging.info(_cookie[:50])
         headers = {"Content-Type": "application/json", "Cookie": _cookie}
         # 默认 stream 模式开启，但针对 AkashGen 模型关闭流式响应
-        stream_flag = data.get('stream', 'true')
-        if model == "AkashGen":
-            stream_flag = False
-        else:
-            stream_flag = json.loads(stream_flag)
+        stream_flag = model != "AkashGen" and data.get("stream", "true").lower() == "true"
 
         akash_response = requests.post(
             'https://chat.akash.network/api/chat',