app.py

import gradio as gr
import vertexai, os

from dotenv import load_dotenv, find_dotenv
_ = load_dotenv(find_dotenv())

credentials =
project = 
openai_api_key = os.environ['OPENAI_API_KEY']

def invoke(prompt):
    response = openai.ChatCompletion.create(
        model = "gpt-3.5-turbo",
        messages = [{"role": "user", "content": prompt}],
        temperature = 0,
        max_tokens = 500,
    )
    return response.choices[0].message["content"]

gr.close_all()
demo = gr.Interface(fn=invoke, 
                    inputs = [gr.Textbox(label = "Prompt", lines = 1)],
                    outputs = [gr.Textbox(label = "Completion", lines = 1)],
                    title = "Generative AI - Text",
                    description = "<a href='https://www.gradio.app/'>Gradio</a> UI using <a href='https://cloud.google.com/vertex-ai?hl=en/'>Google Vertex AI</a> API with Bison foundation model")
demo.launch()