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from fastapi import FastAPI
from transformers import AutoTokenizer, AutoModelForCausalLM
import torch
app = FastAPI()
# Load Llama 2 model
MODEL_NAME = "meta-llama/Llama-2-7b-chat-hf"
tokenizer = AutoTokenizer.from_pretrained(MODEL_NAME)
model = AutoModelForCausalLM.from_pretrained(MODEL_NAME, torch_dtype=torch.float16, device_map="auto")
@app.post("/generate")
async def generate_text(data: dict):
prompt = data.get("prompt", "")
if not prompt:
return {"error": "No prompt provided"}
inputs = tokenizer(prompt, return_tensors="pt").to("cuda")
output = model.generate(**inputs, max_length=200)
response = tokenizer.decode(output[0], skip_special_tokens=True)
return {"generated_text": response}
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