app.py

from fastapi import FastAPI, HTTPException
from transformers import AutoModelForCausalLM, AutoTokenizer
import os
import copy
import time
import llama_cpp
from llama_cpp import Llama
from huggingface_hub import hf_hub_download  

app = FastAPI()

llm = Llama(
    model_path=hf_hub_download(
        repo_id="TheBloke/Mistral-7B-v0.1-GGUF",
        filename="mistral-7b-v0.1.Q4_K_M.gguf"),
    n_ctx=2048,
) 

@app.get("/")
async def generate_text():
    try:
        output = llm(
          "Q: Name the planets in the solar system? A: ", 
          max_tokens=32, 
          stop=["Q:", "\n"], 
          echo=True)
        return output
    except Exception as e:
        raise HTTPException(status_code=500, detail=str(e))