Update app.py

app.py

@@ -218,6 +218,8 @@ with st.expander("See extra options"):
     st.subheader("Select chunk size: ")
     st.write("Smaller chunks means more of the article included in the summary and a longer digest.")
     chunk_size = st.select_slider(label="Slider", options=[i for i in range(50,801,50)], value=400)
+  
+    tok_lim= st.radio("Token limit", options=[512,1024], index=1)
     
 selections = []
 choices = list(clusters.keys())
@@ -247,7 +249,7 @@ with st.form(key='columns_in_form'):
         
             # Digestor uses 'chosen' to create digest.  
             # 'user_choicese' is passed for reference.  
-            digestor = Digestor(timer=Timer(), cache = USE_CACHE, stubs=chosen, user_choices=selections, token_limit=1024, word_limit=chunk_size)
+            digestor = Digestor(timer=Timer(), cache = USE_CACHE, stubs=chosen, user_choices=selections, token_limit=tok_lim, word_limit=chunk_size)
             # happens internally but may be used differently so it isn't automatic upon digestor creation.
             # Easily turn caching off for testing.
             st.subheader("What you'll see:")