app.py

from fastapi import FastAPI
from transformers import pipeline

app=FastAPI()

pipe=pipeline("text2text-generation", model="google/flan-t5-small")

@app.get("/")
def home():
    return{"Hello World"}

@app.get("/generate")
def generate(text:str):
    output=pipe(text)

    #Return json response
    return{"output":output[0]['generated_text']}