app.py

#libraries
import gradio as gr
from gradio.mix import Parallel

#variable, functions and parameters
model1=gr.Interface.load("huggingface/gpt2")
model2=gr.Interface.load("huggingface/EleutherAI/gpt-j-6B")
model3=gr.Interface.load("huggingface/distilgpt2")

#functions, parameters and variables
gr.Parallel(model1, model2, model3).launch()