Stable Diffusion XL: Efficient controllable generation with T2I-Adapters

AI Impact Summary

Diffusers now enables T2I-Adapters for Stable Diffusion XL (SDXL), allowing controllable generation by freezing the base SDXL model and applying lightweight adapters for conditions like lineart, sketch, canny, depth, and openpose. T2I-Adapters run once per denoising process and are significantly smaller than ControlNet, reducing compute and memory requirements while preserving or enhancing control capabilities. Training notes indicate using ~3M LAION-Aesthetics V2 image-text pairs, fp16, and explicit adapter conditioning controls, suggesting a practical path to scalable, conditioned SDXL deployments via pretrained checkpoints.