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README.md
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license: cc-by-nc-4.0
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---
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license: cc-by-nc-4.0
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library_name: diffusers
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base_model: PixArt-alpha/PixArt-XL-2-1024-MS
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tags:
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- lora
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- text-to-image
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inference: False
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---
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# ⚡ FlashDiffusion: FlashPixart ⚡
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Flash Diffusion is a diffusion distillation method proposed in [ADD ARXIV]() *by Clément Chadebec, Onur Tasar and Benjamin Aubin.*
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This model is a **26.4M** LoRA distilled version of Pixart-α model that is able to generate 1024x1024 images in **4 steps**.
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<p align="center">
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<img style="width:700px;" src="images/hf_grid.png">
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</p>
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# How to use?
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The model can be used using the `StableDiffusionPipeline` from `diffusers` library directly. It can allow reducing the number of required sampling steps to **2-4 steps**.
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```python
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import torch
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from diffusers import PixArtAlphaPipeline, Transformer2DModel, LCMScheduler
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from peft import PeftModel
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# Load LoRA
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transformer = Transformer2DModel.from_pretrained(
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"PixArt-alpha/PixArt-XL-2-1024-MS",
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subfolder="transformer",
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torch_dtype=torch.float16
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)
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transformer = PeftModel.from_pretrained(
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transformer,
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"jasperai/flash-pixart"
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)
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# Pipeline
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pipe = PixArtAlphaPipeline.from_pretrained(
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"PixArt-alpha/PixArt-XL-2-1024-MS",
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transformer=transformer,
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torch_dtype=torch.float16
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)
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# Scheduler
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pipe.scheduler = LCMScheduler.from_pretrained(
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"PixArt-alpha/PixArt-XL-2-1024-MS",
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subfolder="scheduler",
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timestep_spacing="trailing",
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)
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pipe.to("cuda")
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prompt = "A raccoon reading a book in a lush forest."
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image = pipe(prompt, num_inference_steps=4, guidance_scale=0).images[0]
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```
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<p align="center">
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<img style="width:400px;" src="images/raccoon.png">
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</p>
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# Training Details
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The model was trained for 40k iterations on 4 H100 GPUs. Please refer to the [paper]() for further parameters details.
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## License
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This model is released under the the Creative Commons BY-NC license.
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