Update app.py

app.py

@@ -1,4 +1,29 @@
 import streamlit as st
+from openai import OpenAI  # Import the client class
 
-x = st.slider('Select a value')
-st.write(x, 'squared is', x * x)
+st.title("Streamlit OpenAI GPT‑4‑Turbo Demo")
+
+# Ask user for their API key (masked input)
+user_api_key = st.text_input("Enter your OpenAI API key", type="password")
+
+# Ask user for a prompt
+user_prompt = st.text_input("Enter your prompt:")
+
+if user_api_key:
+    # Instantiate the OpenAI client with the provided API key
+    client = OpenAI(api_key=user_api_key)
+
+    if user_prompt and st.button("Get Response"):
+        try:
+            # Use the new API call via the instantiated client
+            response = client.chat.completions.create(
+                model="gpt-4-turbo",  # Using the newer GPT‑4‑Turbo model
+                messages=[{"role": "user", "content": user_prompt}],
+                max_tokens=100
+            )
+            st.write("OpenAI response:")
+            st.write(response.choices[0].message.content)
+        except Exception as e:
+            st.error(f"An error occurred: {e}")
+else:
+    st.info("Please enter your OpenAI API key above to get started.")