Update app.py

app.py

@@ -9,12 +9,10 @@ from langchain.chains import RetrievalQAWithSourcesChain
 from langchain.text_splitter import RecursiveCharacterTextSplitter
 from langchain.vectorstores import FAISS
 from langchain_groq import ChatGroq
-from dotenv import load_dotenv
 from langchain.schema import Document
+import os
 
 
-load_dotenv()  # Load environment variables from .env file
-
 st.title("RockyBot: News Research Tool 📈")
 st.sidebar.title("News Article URLs")
 
@@ -24,7 +22,10 @@ process_url_clicked = st.sidebar.button("Process URLs")
 file_path = "faiss_store_openai.pkl"
 
 main_placeholder = st.empty()
-llm = ChatGroq(model_name="llama-3.3-70b-versatile", temperature=0.9, max_tokens=500)
+llm = ChatGroq(
+    api_key=os.environ["GROQ_API_KEY"],  # This will raise an error if unset
+    model_name="llama3-70b-8192"
+)
 
 def fetch_web_content(url):
     """Fetches text content from a given URL using BeautifulSoup."""