app.py

import os
import gradio as gr
from transformers import pipeline

def launch(input):
    out = pipe(input)
    return out[0]['generated_text']

iface = gr.Interface(launch,
                     inputs=gr.Image(type='pil'),
                     outputs="text")

iface.launch(share=True, 
             server_port=int(os.environ['PORT1']))