Update app.py

app.py

@@ -9,7 +9,7 @@ import random
 # Environment variables (Hugging Face Spaces SAFE)
 # =====================================================
 
-MODEL = "gpt-4o-mini"
+MODEL = "gpt-4.1-mini"  # Updated to a valid model for Responses API
 
 API_URL = os.getenv("API_URL")
 if not API_URL:
@@ -57,7 +57,7 @@ def predict(inputs, top_p, temperature, chat_counter, chatbot, history, request:
         "Authorization": f"Bearer {OPENAI_API_KEY}"
     }
 
-    # Create payload for Responses API
+    # Build payload for Responses API
     payload = {
         "model": MODEL,
         "input": inputs,
@@ -66,7 +66,7 @@ def predict(inputs, top_p, temperature, chat_counter, chatbot, history, request:
     }
 
     chat_counter += 1
-    history.append(inputs)
+    history.append({"role": "user", "content": inputs})
 
     try:
         response = requests.post(API_URL, headers=headers, json=payload, timeout=60)
@@ -77,29 +77,19 @@ def predict(inputs, top_p, temperature, chat_counter, chatbot, history, request:
             output_text = f"Error: {response.status_code}"
         else:
             data = response.json()
-            # Extract text output from Responses API format
+            # Extract text output from Responses API
             output_text = data["output"][0]["content"][0]["text"]
-            history.append(output_text)
+            history.append({"role": "assistant", "content": output_text})
 
-        yield (
-            [(history[i], history[i + 1]) for i in range(0, len(history) - 1, 2)],
-            history,
-            chat_counter,
-            response,
-            gr.update(interactive=True),
-            gr.update(interactive=True),
-        )
+        # Convert history to Gradio 'messages' format
+        messages = [{"role": msg["role"], "content": msg["content"]} for msg in history]
+
+        yield messages, history, chat_counter, response, gr.update(interactive=True), gr.update(interactive=True)
 
     except Exception as e:
         print(f"API request error: {e}")
-        yield (
-            [(history[i], history[i + 1]) for i in range(0, len(history) - 1, 2)],
-            history,
-            chat_counter,
-            None,
-            gr.update(interactive=True),
-            gr.update(interactive=True),
-        )
+        messages = [{"role": msg["role"], "content": msg["content"]} for msg in history]
+        yield messages, history, chat_counter, None, gr.update(interactive=True), gr.update(interactive=True)
 
 # =====================================================
 # UI helpers
@@ -134,7 +124,7 @@ with gr.Blocks(
     gr.HTML("<h3 align='center'>I'm Kutti</h3>")
 
     with gr.Column(elem_id="col_container", visible=False) as main_block:
-        chatbot = gr.Chatbot(elem_id="chatbot")
+        chatbot = gr.Chatbot(elem_id="chatbot", type="messages")  # Fixed warning
         inputs = gr.Textbox(placeholder="Hi there!", label="Type an input and press Enter")
         state = gr.State([])