Update app.py

app.py

@@ -26,12 +26,10 @@ dental_terms = {
     "occlusion": "Occlusion refers to the alignment and contact between teeth when the jaws close."
 }
 
-# Set up a Flan-T5 pipeline (instruction-tuned T5)
-# We'll use the "text2text-generation" pipeline for T5-like models
-# Model: google/flan-t5-base
+# Set up a gpt2-large pipeline 
 generation_pipeline = pipeline(
-    "text2text-generation",
-    model="google/flan-t5-base"
+    "text-generation",
+    model="gpt2-large"
 )
 
 def chatbot_response(message, history):