app.py

import gradio as gr
import os
import openai

from llama_index.core import VectorStoreIndex, SimpleDirectoryReader
from llama_index.embeddings.huggingface import HuggingFaceEmbedding
from llama_index.core import Settings

Settings.embed_model = HuggingFaceEmbedding(model_name="BAAI/bge-small-en-v1.5")


openai.api_key = os.environ['OpenAI_ApiKey']
def greet(name):
    return "Hello " + name + "!!"

demo = gr.Interface(fn=greet, inputs="text", outputs="text")
demo.launch()