app.py

import gradio as gr
from gradio.mix import Parallel

a="My First Text Generator"
b="Input text and submit."

model1=gr.Interface.load("huggingface/EleutherAI/gpt-j-6B")
model2=gr.Interface.load("huggingface/gpt2")
model3=gr.Interface.load("huggingface/bigscience/bloom-560m")

gr.Interface.load(model1, model2, model3,title=a, description=b).launch()