RogerYao/stca-sd35-warmup-7000

STCA SD3.5 Medium — SFT Warmup Checkpoint (step 7000)

Fine-tuned transformer weights from Stable Diffusion 3.5 Medium, after supervised Fine-T2I warmup used by the STCA (Semantic-Temporal Credit Assignment) pipeline.

Field	Value
Base	stabilityai/stable-diffusion-3.5-medium
Component	transformer only (~9.3 GiB)
Step	7000 (Fine-T2I SFT warmup)
Format	safetensors + Diffusers config.json

Load

from diffusers import SD3Transformer2DModel, StableDiffusion3Pipeline
import torch

repo = "RogerYao/stca-sd35-warmup-7000"
transformer = SD3Transformer2DModel.from_pretrained(
    repo, subfolder="transformer", torch_dtype=torch.bfloat16
)
pipe = StableDiffusion3Pipeline.from_pretrained(
    "stabilityai/stable-diffusion-3.5-medium",
    transformer=transformer,
    torch_dtype=torch.bfloat16,
)

For STCA-release RL training, set:

SFT_WARMUP_PATH=<local_dir>/transformer
# or download:
# hf download RogerYao/stca-sd35-warmup-7000 --local-dir outputs/warmup/checkpoint-7000

License

Derived from Stability AI SD3.5 Medium. You must accept the Stability Community License before use. Redistribution follows that license.