TechFeb 14, 20265 minWhy are image-generation VAEs so heavy? Comparing the Qwen-Image and HunyuanImage architecturesAn explanation of why Qwen-Image-Edit's VAE is so heavy, how HunyuanImage 2.1 chose a 32x high-compression VAE instead, and how Kohya's memory-optimization work fits in.AIImage GenerationVAEQwenHunyuanImageMemory Optimization
