How to load pixart-900m-1024-ft into ComfyUI?
1 - Install the "Extra Models For ComfyUI" package from Comfy Manager;
2 - Download diffusion_pytorch_model.safetensors from: https://huggingface.co/ptx0/pixart-900m-1024-ft/tree/main/transformer to your ComfyUI Checkpoints directory;
3 - Download t5xxl_fp8_e4m3fn.safetensors file from https://huggingface.co/stabilityai/stable-diffusion-3-medium/tree/main/text_encoders to your Comfy Clip folder;
4 - load the workflow from the attachment of this article into your ComfyUI ... happy generating!
The result:
More examples: https://civitai.com/posts/3907961