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import os
from fastapi import FastAPI, HTTPException
from pydantic import BaseModel
from transformers import AutoModelForCausalLM, AutoTokenizer
import torch
# Disable hf_transfer
os.environ["HF_HUB_ENABLE_HF_TRANSFER"] = "false"
app = FastAPI()
# Load your fine-tuned model and tokenizer
model_name = "OnlyCheeini/greesychat-turbo"
tokenizer = AutoTokenizer.from_pretrained(model_name)
model = AutoModelForCausalLM.from_pretrained(model_name, torch_dtype=torch.float16).to("cuda")
class OpenAIRequest(BaseModel):
model: str
prompt: str
max_tokens: int = 64
temperature: float = 0.7
top_p: float = 0.9
class OpenAIResponse(BaseModel):
choices: list
@app.post("/v1/completions", response_model=OpenAIResponse)
async def generate_text(request: OpenAIRequest):
if request.model != model_name:
raise HTTPException(status_code=400, detail="Model not found")
inputs = tokenizer(request.prompt, return_tensors="pt").to("cuda")
outputs = model.generate(
**inputs,
max_length=inputs['input_ids'].shape[1] + request.max_tokens,
temperature=request.temperature,
top_p=request.top_p,
)
generated_text = tokenizer.decode(outputs[0], skip_special_tokens=True)
return OpenAIResponse(choices=[{"text": generated_text}])
if __name__ == "__main__":
import uvicorn
uvicorn.run(app, host="0.0.0.0", port=8000) |