app.py

import gradio as gr 
from gradio.mix import parallel 

title="My First Text Generator"
description="Input text."

model1=gr.Interface.load("huggingface/EleutherAI/gpt-j-6B")
model2=gr.Interface.load("huggingface/EleutherAI/gpt2")
model3=gr.Interface.load("huggingface/EleutherAI/gpt-neo-125M")

gr.Parallel(model1, model2, model3, title=title, description=description)