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Luke100000/
dc-ae-mini-f32c32-sana-1.1-diffusers

Name: dc-ae-mini-f32c32-sana-1.1-diffusers
Availability: InStock

diffusers

safetensors

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A proof of concept that a smaller AE can cut inference time of Sana in half.

Code is here: https://github.com/Luke100000/Mini-DC-AE

Training is suboptimal and blurry since I failed to replicate the GAN training from the paper.

Parameter count of the AE decoder reduced by 9x.

End-to-end inference time went down massively:

import torch
from diffusers import AutoencoderDC, SanaSprintPipeline

device = "cuda"
dtype = torch.float32 if device == "cpu" else torch.bfloat16

pipeline = SanaSprintPipeline.from_pretrained(
    "Efficient-Large-Model/Sana_Sprint_0.6B_1024px_diffusers",
    torch_dtype=dtype,
)
pipeline.vae = AutoencoderDC.from_pretrained(
    "Luke100000/dc-ae-mini-f32c32-sana-1.1-diffusers",
    torch_dtype=dtype,
    low_cpu_mem_usage=False
)

pipeline.to(device=device, dtype=dtype)

pipeline(prompt="a tiny astronaut hatching from an egg on the moon", num_inference_steps=2, width=512, height=512).images[0]