Update app.py

app.py

@@ -7,7 +7,7 @@ from functools import lru_cache
 from cachetools import LRUCache
 import threading
 
-MODEL_CACHE = LRUCache(maxsize=6)   # max 10 models
+MODEL_CACHE = LRUCache(maxsize=10)   # max 10 models
 CACHE_LOCK = threading.Lock()