update models

app.py

@@ -40,6 +40,8 @@ from model import (
     sample_rate,
 )
 
+model_dropdown = None
+
 languages = list(language_to_models.keys())
 
 
@@ -266,11 +268,13 @@ css = """
 def update_model_dropdown(language: str):
     if language in language_to_models:
         choices = language_to_models[language]
-        return gr.Dropdown(
+        global model_dropdown
+        model_dropdown = gr.Dropdown(
             choices=choices,
             value=choices[0],
             interactive=True,
         )
+        return model_dropdown
 
     raise ValueError(f"Unsupported language: {language}")
 
@@ -287,6 +291,7 @@ with demo:
         choices=language_choices,
         value=language_choices[0],
     )
+    global model_dropdown
     model_dropdown = gr.Dropdown(
         choices=language_to_models[language_choices[0]],
         label="Select a model",