Update app.py

app.py

@@ -592,8 +592,8 @@ def _summarize(text):
     toks = tokenizer.encode( prefix + text, return_tensors="pt", truncation=False)
     gen = model.generate(
         toks,
-        length_penalty=0.9,
-        num_beams=8,
+        length_penalty=2.0,
+        num_beams=4,
         early_stopping=True,
         max_length=512
     )