Update app.py

app.py

@@ -21,6 +21,7 @@ API_ENDPOINTS = {
     "Llama": "meta-llama/Llama-2-70b-chat-hf",
     "Mistral": "mistralai/Mistral-7B-v0.1",
     "Mistral-2": "mistralai/Mistral-7B-Instruct-v0.1",
+    "Open-3.5": "openchat/openchat_3.5",
     # "Yi": "01-ai/Yi-34XXXB-Chat",
 }