refactor: Remove Qwen model and update default model choice in examples

app.py

@@ -354,17 +354,13 @@ with gr.Blocks() as demo:
             examples=[
                 [
                     ["./examples/ai_talk.wav", "./examples/bg-image.png"],
-                    "Use the image as the background with a waveform visualization for the audio positioned in center of the video.",
-                    0.7,
-                    0.1,
-                    (
-                        list(MODELS.keys())[1]
-                        if len(MODELS) > 1
-                        else list(MODELS.keys())[0]
-                    ),
-                ],
-                [
-                    ["./examples/ai_talk.wav", "./examples/bg-image.png"],
+                   "Use the image as the background with a waveform visualization for the audio positioned in center of the video.",
+                   0.7,
+                   0.1,
+                   list(MODELS.keys())[0],
+               ],
+               [
+                   ["./examples/ai_talk.wav", "./examples/bg-image.png"],
                     "Use the image as the background with a waveform visualization for the audio positioned in center of the video. Make sure the waveform has a max height of 250 pixels.",
                     0.7,
                     0.1,
@@ -380,17 +376,13 @@ with gr.Blocks() as demo:
                         "./examples/cat6.jpeg",
                         "./examples/heat-wave.mp3",
                     ],
-                    "Create a 3x2 grid of the cat images with the audio as background music. Make the video duration match the audio duration.",
-                    0.7,
-                    0.1,
-                    (
-                        list(MODELS.keys())[1]
-                        if len(MODELS) > 1
-                        else list(MODELS.keys())[0]
-                    ),
-                ],
-            ],
-            inputs=[user_files, user_prompt, top_p, temperature, model_choice],
+                   "Create a 3x2 grid of the cat images with the audio as background music. Make the video duration match the audio duration.",
+                   0.7,
+                   0.1,
+                   list(MODELS.keys())[0],
+               ],
+           ],
+           inputs=[user_files, user_prompt, top_p, temperature, model_choice],
             outputs=[generated_video, generated_command],
             fn=update,
             run_on_click=True,