Install the tested composition stack
The committed composition and post-processing benchmarks use three public model files:
| File | ComfyUI folder | SHA-256 | License named by the model card |
|---|---|---|---|
sd_xl_base_1.0.safetensors | models/checkpoints | 31e35c80fc4829d14f90153f4c74cd59c90b779f6afe05a74cd6120b893f7e5b | CreativeML Open RAIL++-M |
pixel-art-xl.safetensors | models/loras | 4234637cb80c998f41e348e6a6cb6bc20d8d038b2b0f256b6129b3b5e353eef7 | CreativeML OpenRAIL-M |
birefnet.safetensors | models/background_removal | 9ab37426bf4de0567af6b5d21b16151357149139362e6e8992021b8ce356a154 | MIT |
Download each file into the named folder, verify its checksum, then confirm the checkpoint, LoRA, and background-removal model appear in ComfyUI. The files are about 6.9 GB, 171 MB, and 444 MB. They are not bundled with PixelKiln. Read the model cards before distributing the models or their outputs.
The environment benchmark renders at 1024×1024, where SDXL has enough room to
compose the scene, then uses ComfyUI's core ImageScale node with
nearest-exact to write the requested 256px or 384px PNG. Asset width and
height are therefore bound to the scale node, not the latent node. Those files
prove exact delivery dimensions; they do not prove a native pixel grid. The
separate native-grid benchmark saves the model canvas and reconstructs its
implied cells afterward.
You can reproduce the four samples with the committed ComfyUI benchmark project.