gradio==3.0.0
transformers==4.12.0
torch==1.9.0

!pip install transformers
!pip install gradio

import gradio as gr
from transformers import pipeline

summarizer = pipeline("summarization", model="facebook/bart-large-cnn")

def summarize_text(text):
    summary = summarizer(text, max_length=200, min_length=100, do_sample=False)
    return summary[0]['summary_text']

demo = gr.Interface(
    fn=summarize_text,
    inputs=gr.Textbox(placeholder="Enter your text here", label="Input Text"),
    outputs=gr.Textbox(label="Summary"),
    title="Text Summarizer",
    description="This chatbot takes a long text as input and returns a summary."
)

demo.launch()