Stable Diffusion XL on Mac with Advanced Core ML Quantization

AI Impact Summary

Stable Diffusion XL has been ported to Mac with Core ML quantization, enabling local execution on Apple Silicon Macs. This release introduces advanced mixed-bit palettization, a novel compression technique that balances model size reduction with minimal quality loss. The technique dynamically adjusts quantization levels per layer based on its impact on image quality, offering a more efficient approach than traditional quantization methods, and is applicable to other Stable Diffusion models.