Update app.py

app.py

@@ -98,7 +98,7 @@ def openrouter_chat(user_message, history, use_web_search):
     try:
         # Call the model with the mistralai/Devstral-Small-2505 for full conversation history
         resp = client.chat.completions.create(
-            model="mistralai/devstral-small:free",
+            model="deepseek/deepseek-r1-0528",
             messages=messages_for_api,
             # you can tweak max_tokens, temperature, etc. here
         )
@@ -227,8 +227,8 @@ with gr.Blocks(css=custom_css, theme=gr.themes.Soft()) as demo:
     gr.Markdown(
         """
         <div style="text-align: center; padding: 20px;">
-            <h1 style="font-size: 2.5em; margin-bottom: 10px;">🤖 AI Chat Assistant</h1>
-            <p style="font-size: 1.1em; color: #718096;">Powered by Devstral with Web Search</p>
+            <h1 style="font-size: 2.5em; margin-bottom: 10px;">🤖 AI Chat Assistant : deepseek-r1-0528</h1>
+            <p style="font-size: 1.1em; color: #718096;">with Web Search</p>
         </div>
         """,
         elem_id="header"