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license: cc-by-nc-sa-4.0

Enhancing Diffusion Models with Text-Encoder Reinforcement Learning

Official PyTorch codes for paper Enhancing Diffusion Models with Text-Encoder Reinforcement Learning

Results on SDXL-Turbo

We also applied our method to the recent model sdxl-turbo. The model is trained with ImageReward feedback through direct back-propagation to save training time. Test with the following codes

## Note: sdturbo requires latest diffusers installed from source with the following command
git clone https://github.com/huggingface/diffusers
cd diffusers
pip install -e .
from diffusers import AutoPipelineForText2Image
import torch

pipe = AutoPipelineForText2Image.from_pretrained("stabilityai/sdxl-turbo", torch_dtype=torch.float16, variant="fp16")
pipe = pipe.to("cuda")
pipe.load_lora_weights('chaofengc/sdxl-turbo_texforce')

pt = ['a photo of a cat.']
img = pipe(prompt=pt, num_inference_steps=1, guidance_scale=0.0).images[0]

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