Update app.py

app.py

@@ -52,7 +52,7 @@ if "embeddings_model" not in st.session_state:
     # We will use the all-MiniLM-L6-v2 model for embeddings
     st.session_state['embeddings_model'] = SentenceTransformer('sentence-transformers/all-MiniLM-L6-v2')
 
-my_system_instructions = "You are a helpful assistant. Be brief and concise. Provide your answers in 100 words or less."
+my_system_instructions = "You are a helpful assistant. Be brief and concise. Clasify given text as FAKE or REAL based on the given context in 100 words or less."
 
 first_message = "Hello, how can I help you today?"
 
@@ -104,17 +104,17 @@ The user agrees to indemnify and hold harmless the developers of the Software fr
 By using the Software, you agree to the terms and conditions of the disclaimer.""")
 
     # Add a selectbox for model selection
-    model_list_all = [  'mistralai/Mistral-7B-Instruct-v0.3',
-                        'Qwen/Qwen2.5-72B-Instruct', 
-                        'HuggingFaceH4/zephyr-7b-beta']
-    if os.getenv("GOOGLE_API_KEY"):
-        model_list_all.append('gemini-2.5-flash-preview-05-20')
-    if os.getenv("OPENAI_API_KEY"):
-        model_list_all.append('gpt-4.1-nano-2025-04-14')
-    st.selectbox("Select the model to use:",
-                model_list_all, 
-                key="my_llm_model", 
-                on_change=update_llm_model)
+    # model_list_all = [  'mistralai/Mistral-7B-Instruct-v0.3',
+    #                     'Qwen/Qwen2.5-72B-Instruct', 
+    #                     'HuggingFaceH4/zephyr-7b-beta']
+    # if os.getenv("GOOGLE_API_KEY"):
+    #     model_list_all.append('gemini-2.5-flash-preview-05-20')
+    # if os.getenv("OPENAI_API_KEY"):
+    #     model_list_all.append('gpt-4.1-nano-2025-04-14')
+    # st.selectbox("Select the model to use:",
+    #             model_list_all, 
+    #             key="my_llm_model", 
+    #             on_change=update_llm_model)
     
     # Add a text are for the system instructions
     st.text_area(label="Please enter your system instructions here:", value=my_system_instructions, height=80, key="my_system_instructions", on_change=delete_chat_messages)