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DiffSynth-Studio/examples/flux2/model_inference_low_vram/Template-KleinBase4B-Age.py
2026-04-20 11:41:20 +08:00

43 lines
2.0 KiB
Python

from diffsynth.diffusion.template import TemplatePipeline
from diffsynth.pipelines.flux2_image import Flux2ImagePipeline, ModelConfig
import torch
vram_config = {
"offload_dtype": "disk",
"offload_device": "disk",
"onload_dtype": torch.float8_e4m3fn,
"onload_device": "cpu",
"preparing_dtype": torch.float8_e4m3fn,
"preparing_device": "cuda",
"computation_dtype": torch.bfloat16,
"computation_device": "cuda",
}
pipe = Flux2ImagePipeline.from_pretrained(
torch_dtype=torch.bfloat16,
device="cuda",
model_configs=[
ModelConfig(model_id="black-forest-labs/FLUX.2-klein-base-4B", origin_file_pattern="transformer/*.safetensors", **vram_config),
ModelConfig(model_id="black-forest-labs/FLUX.2-klein-4B", origin_file_pattern="text_encoder/*.safetensors", **vram_config),
ModelConfig(model_id="black-forest-labs/FLUX.2-klein-4B", origin_file_pattern="vae/diffusion_pytorch_model.safetensors"),
],
tokenizer_config=ModelConfig(model_id="black-forest-labs/FLUX.2-klein-4B", origin_file_pattern="tokenizer/"),
vram_limit=torch.cuda.mem_get_info("cuda")[1] / (1024 ** 3) - 0.5,
)
template = TemplatePipeline.from_pretrained(
torch_dtype=torch.bfloat16,
device="cuda",
model_configs=[ModelConfig(model_id="DiffSynth-Studio/Template-KleinBase4B-Age")],
lazy_loading=True,
)
prompt = "Half body color photograph of a single woman, head and torso with visible arms and hands resting gently in front of the body, looking directly at the camera, centered composition, colorful studio background with soft gradient of warm pastel tones, vibrant studio lighting, wearing a plain red short-sleeve t-shirt, straight black shoulder-length hair, photorealistic, high quality"
negative_age = 45
for age in range(10, 91, 5):
print(f"Generating age {age}...")
image = template(
pipe,
prompt=prompt,
seed=0, cfg_scale=4, num_inference_steps=50,
template_inputs=[{"age": age}],
negative_template_inputs=[{"age": negative_age}],
)
image.save(f"image_age_{age}.jpg")