Z.ai open-sources SCAIL-2 (Wan 2.1, 14B, Apache 2.0): end-to-end character animation with no skeleton maps or inpainting masks. Human2Any, Any2Any (animals, cartoons), cross-identity replacement, multi-character. Emergent: animal-driving, SAM3D-Body mesh zero-shot. ComfyUI day-0 (Comfy-Org/SCAIL-2).