Nunchaku

Nunchaku 4-bit diffusion inference engine integrated into Hugging Face Diffusers

Hugging Face has published a blog post announcing the integration of Nunchaku, a 4-bit quantization inference engine for diffusion models, into the Diffusers library. The integration brings W4A4 (4-bit weight and activation) quantization to diffusion pipelines, enabling faster and more memory-efficient image generation. This lowers the hardware barrier for running large diffusion models and is relevant to practitioners deploying image generation at scale.