Update app.py

app.py

@@ -143,7 +143,7 @@ def process_documents(uploaded_files_dict):
 
             # Split documents
             text_splitter = RecursiveCharacterTextSplitter(
-                chunk_size=2000,
+                chunk_size=1500,
                 chunk_overlap=400,
                 length_function=len
             )
@@ -356,7 +356,7 @@ def process_and_chat():
     if current_files and st.session_state.chat_enabled:
         try:
             # Initialize components for chat
-            llm = ChatGroq(temperature=0, model_name="mixtral-8x7b-32768", groq_api_key=os.getenv("GROQ_API_KEY"))
+            llm = ChatGroq(temperature=0, model_name="llama-3.3-70b-versatile", groq_api_key=os.getenv("GROQ_API_KEY"), max_tokens=8000)
             pc = Pinecone(api_key=os.getenv("PINECONE_API_KEY"))
             index_name = get_session_index_name()
             pc_index = pc.Index(index_name)