Update app.py

app.py

@@ -559,10 +559,10 @@ def send_to_model_impl(prompt, model_selection, hf_model_choice, hf_custom_model
             if summary.startswith("Error: This model requires authentication") and hf_api_key:
                 # Only try with API key if the model specifically requires it
                 summary = send_to_hf_inference(prompt, model_id, hf_api_key, use_rate_limits)
-            
+       
         elif model_selection == "Groq API":
             if not groq_api_key:
-                return "Error: Groq API key required", None
+                return gr.HTML(""), "Error: Groq API key required", None
             summary = send_to_groq(prompt, groq_model_choice, groq_api_key, use_rate_limits)
             
         elif model_selection == "OpenAI ChatGPT":
@@ -591,10 +591,10 @@ def send_to_model_impl(prompt, model_selection, hf_model_choice, hf_custom_model
 
         # Validate response
         if not summary:
-            return "Error: No response from model", None
+            return gr.HTML(""), "Error: No response from model", None
             
         if not isinstance(summary, str):
-            return "Error: Invalid response type from model", None
+            return gr.HTML(""), "Error: Invalid response type from model", None
             
         # Create download file for valid responses
         if not summary.startswith("Error"):
@@ -602,14 +602,15 @@ def send_to_model_impl(prompt, model_selection, hf_model_choice, hf_custom_model
                 f.write(summary)
                 return gr.HTML(""), summary, f.name
                 
-        return gr.HTML(""), summary, download_file
+        return gr.HTML(""), summary, None
 
     except Exception as e:
         error_msg = str(e)
         if not error_msg:
             error_msg = "Unknown error occurred"
         logging.error(f"Error in send_to_model_impl: {error_msg}")
-        return f"Error: {error_msg}", None
+        # FIX: Return all three values even in error case
+        return gr.HTML(""), f"Error: {error_msg}", None
     
 def send_to_qwq(prompt: str):
     """Send prompt to QwQ API."""