# You Only Sample Once (YOSO)

## Usage

### 1-step inference
1-step inference is only allowed based on SD v1.5 for now. And you should prepare the informative initialization according to the paper for better results.

### 2-step inference
We note that a small CFG can be used to enhance the image quality.
```python
pipeline = DiffusionPipeline.from_pretrained("stablediffusionapi/realistic-vision-v51", torch_dtype = torch.float16)
pipeline = pipeline.to('cuda')
pipeline.scheduler = LCMScheduler.from_config(pipeline.scheduler.config)
generator = torch.manual_seed(318)
steps = 2
imgs= pipeline(prompt="A photo of a man, XT3",
                    num_inference_steps=steps, 
                    num_images_per_prompt = 1,
                        generator = generator,
                        guidance_scale=1.5,
                   )[0]
imgs
```