Update app.py

app.py

@@ -27,6 +27,13 @@ CORS(app, resources={r"/send_message": {"origins": ["http://localhost:3000", "ht
  # Load Sentence-BERT model
 bertmodel = SentenceTransformer('all-MiniLM-L6-v2')  # Lightweight, efficient model; choose larger if needed
 
+# Global variables for model and tokenizer
+model = None
+tokenizer = None
+accelerator = Accelerator() 
+highest_label = None 
+loaded_models = {}
+
 # Load model with accelerator
 classifier = pipeline(
     "zero-shot-classification",
@@ -37,13 +44,6 @@ classifier = pipeline(
 
 # Move model to correct device
 classifier.model = accelerator.prepare(classifier.model)
-
-# Global variables for model and tokenizer
-model = None
-tokenizer = None
-accelerator = Accelerator() 
-highest_label = None 
-loaded_models = {}
  
 # Define upload directory and FAISS index file
 UPLOAD_DIR = "/app/uploads"