Update app.py

app.py

@@ -6,6 +6,7 @@ CAPTION_MODELS = {
     'blip-base': 'Salesforce/blip-image-captioning-base',
     'blip-large': 'Salesforce/blip-image-captioning-large',
     'vit-gpt2-coco-en': 'ydshieh/vit-gpt2-coco-en',
+    'blip2-2.7b_8bit': 'Mediocreatmybest/blip2-opt-2.7b_8bit',
     'blip2-2.7b-fp16': 'Mediocreatmybest/blip2-opt-2.7b-fp16-sharded',
     'blip2-2.7b': 'Salesforce/blip2-opt-2.7b',
 }