Added model size as the default (before args)

utils/utils.py

@@ -1,5 +1,7 @@
 import whisper
 import argparse
+import os
+
 def str2bool(string):
   str2val = {"True": True, "False": False}
   if string in str2val:
@@ -15,7 +17,7 @@ def get_args():
                       help="Wether to share with gradio public or not")
   parser.add_argument("--preload", type=str2bool, default=True,
                       help="Should the model be preloaded on script launch. Disable for faster debug")
-  parser.add_argument("--model", default="medium",
+  parser.add_argument("--model", default=os.environ.get('MODEL_SIZE', "medium"),
                       choices=whisper.available_models(), help="name of the Whisper model to use")
 
   args = parser.parse_args().__dict__