TCFG: Truncated Classifier-Free Guidance for Efficient and Scalable Text-to-Image Acceleration

Diffusion models have achieved remarkable success in image and video generation due to their powerful generative capabilities. However, they suffer from slow inference speed and high computational costs. Existing acceleration methods for diffusion models may compromise model performance and struggle to generalize across diverse diffusion model architectures and downstream tasks. To address these issues, we propose a model-agnostic and highly scalable acceleration strategy for text-controlled image generation. Specifically, we dynamically modulate the text guidance coefficience and truncate redundant text-related computations during the denoising process. Experimental results demonstrate that our approach achieves significant model acceleration while preserving precise text-image alignment, showcasing the potential for a wide range of diffusion models and downstream applications.