app.py

import gradio as gr
generator1 = gr.Interface.load("huggingface/gpt2")
generator2 = gr.Interface.load("huggingface/EleutherAI/gpt-neo-2.7B")
generator3 = gr.Interface.load("models/HuggingFaceTB/cosmo-1b")

gr.Parallel(generator1, generator2, generator3).launch()