Hide API and fix temp=0 case

app.py

@@ -49,12 +49,15 @@ def chat_inference(image, text, temperature, top_p, top_k, max_tokens, conversat
 
     generation_kwargs = {
         "max_new_tokens": max_tokens,
-        "temperature": temperature,
         "top_p": top_p,
         "top_k": top_k,
         "do_sample": True,
     }
 
+    if temperature > 0:
+        generation_kwargs["temperature"] = temperature
+        generation_kwargs["do_sample"] = True
+
     output = model.generate(**inputs, **generation_kwargs)
     assistant_response = processor.decode(output[0], skip_special_tokens=True)
 
@@ -121,4 +124,4 @@ with gr.Blocks(title="Granite Vision 3.1 2B", css="h1 { overflow: hidden; }") as
     )
 
 if __name__ == "__main__":
-    demo.launch()
+    demo.launch(show_api=False)