Update app.py

app.py

@@ -1,6 +1,6 @@
 import gradio as gr
 from gpt4all import GPT4All
-import urllib
+from urllib.request import urlopen
 import json
 
 url = "https://raw.githubusercontent.com/nomic-ai/gpt4all/main/gpt4all-chat/metadata/models3.json"
@@ -16,7 +16,12 @@ def generate_text(input_text, selected_model):
     output = model.generate(input_text, max_tokens=100)
     return output
 
-model_dropdown = gr.Dropdown(choices=model_choices(), multiselect=False, label="LLMs to choose from", type="value")
+model_dropdown = gr.Dropdown(choices=model_choices(), 
+                             multiselect=False, 
+                             label="LLMs to choose from", 
+                             type="value", 
+                             value="orca-mini-3b-gguf2-q4_0.gguf")
+
 input_text = gr.Textbox(lines=5, label="Input Text")
 output_text = gr.Textbox(lines=5, label="Generated Text")