fix: no default param

app.py

@@ -647,7 +647,7 @@ additional_inputs=[
     ),
     gr.Slider(
         label="Top-p (nucleus sampling)",
-        value=0.6,
+        value=None,
         minimum=0.0,
         maximum=1,
         step=0.05,
@@ -656,7 +656,7 @@ additional_inputs=[
     ),
     gr.Slider(
         label="Top-k",
-        value=40,
+        value=None,
         minimum=0.0,
         maximum=1000,
         step=1,
@@ -665,7 +665,7 @@ additional_inputs=[
     ),
     gr.Slider(
         label="Repetition penalty",
-        value=1.001,
+        value=None,
         minimum=1.0,
         maximum=2.0,
         step=0.05,