inference.py

import torch
from optimum.intel import OVZImagePipeline

# ===== Load once =====
pipe = OVZImagePipeline.from_pretrained(
    "hsuwill000/Z-Image-Turbo-ov",
    device="cpu"
)


def generate(
    prompt,
    height=512,
    width=512,
    steps=9,
    seed=-1,
):
    if seed == -1:
        generator = torch.Generator("cpu")
    else:
        generator = torch.Generator("cpu").manual_seed(int(seed))

    image = pipe(
        prompt=prompt,
        height=int(height),
        width=int(width),
        num_inference_steps=int(steps),
        guidance_scale=0.0,
        generator=generator,
    ).images[0]

    return image