Update app.py

app.py

@@ -106,10 +106,12 @@ def respond(
     global undetected
     global model
     global model_id
+    global codes_emb
 
     if chosen_model_id != model_id:
         model = SentenceTransformer(chosen_model_id, trust_remote_code=True)
         model_id = chosen_model_id
+        codes_emb = model.encode([x[6:] for x in codes])
 
     undetected_code = undetected[:3]