feat: add model name dropdown to form

app.py

@@ -1,11 +1,6 @@
 import gradio as gr
 from huggingface_hub import InferenceClient
 
-"""
-For more information on `huggingface_hub` Inference API support, please check the docs: https://huggingface.co/docs/huggingface_hub/v0.22.2/en/guides/inference
-"""
-client = InferenceClient("HuggingFaceH4/zephyr-7b-beta")
-
 
 def respond(
     message,
@@ -14,7 +9,13 @@ def respond(
     max_tokens,
     temperature,
     top_p,
+    model_name,
 ):
+    """
+    For more information on `huggingface_hub` Inference API support, please check the docs: https://huggingface.co/docs/huggingface_hub/v0.22.2/en/guides/inference
+    """
+    client = InferenceClient(model_name)
+
     messages = [{"role": "system", "content": system_message}]
 
     for val in history:
@@ -55,9 +56,13 @@ demo = gr.ChatInterface(
             step=0.05,
             label="Top-p (nucleus sampling)",
         ),
-    ],
+        gr.Dropdown(
+            label="Model",
+            choices=["HuggingFaceH4/zephyr-7b-beta", "google/flan-t5-xxl"]
+        ),
+    ]
 )
 
 
 if __name__ == "__main__":
-    demo.launch()
+    demo.launch()