update size after model load

app.py

@@ -12,9 +12,10 @@ def inference(link):
   return results['text']
 
 def change_model(size):
-  if size == curren_size:
+  if size == current_size:
     return
   loaded_model = whisper.load_model(size)
+  current_size = size
 
 title="Youtube Whisperer"
 description="Speech to text transcription of Youtube videos using OpenAI's Whisper"