Update app.py

app.py

@@ -53,7 +53,7 @@ def dropdown_example(choice, img):
     return predict_top_classes(img, model_name)
 
 dropdown = gr.inputs.Dropdown(
-    choices=["Xception","InceptionV3","InceptionResNetV2","DenseNet201"],
+    choices=list(models.key()),
     type="index",
     label="Select a model"
 )