app.py

import gradio as gr
from transformers import pipeline

get_completion = pipeline("summarization", model="shleifer/distilbart-cnn-12-6")

def summarize(input):
    output = get_completion(input)
    return output[0]['summary_text']

gr.close_all()
demo = gr.Interface(fn=summarize, inputs="text", outputs="text")
demo.launch()