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Abiray/
SCAIL-2-GGUF

Name: SCAIL-2-GGUF
Availability: InStock

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SCAIL-2 GGUF (Optimized Weights)

This repository contains GGUF quantizations of SCAIL-2, the cutting-edge end-to-end controlled character animation and video motion-transfer model built on the Wan 2.1 14B architecture by zai-org.

These weights are specifically optimized to execute the heavy SCAIL-2 Diffusion Transformer (DiT) inside ComfyUI at a fraction of the native FP16/FP8 VRAM overhead.

⚡ Quick Start (ComfyUI)

Required Loader: Install city96's ComfyUI-GGUF extension.
Node Placement: Use the Unet Loader (GGUF) node.
File Path: Download your preferred quant from this repository and drop it into: ComfyUI/models/unet/

📦 Quantization Tiers

File Name	File Size	Recommended VRAM / Profile
SCAIL-2-Q3_K_M.gguf	9.11 GB	Budget setup; extreme VRAM savings with minor structural degradation.
SCAIL-2-Q4_K_S.gguf	10.7 GB	Light daily driver; balanced compression.
SCAIL-2-Q4_K_M.gguf	11.5 GB	Recommended baseline; excellent compromise between detail retention and performance.
SCAIL-2-Q5_K_S.gguf	12.1 GB	Higher tier baseline; minimizes artifacts in fine textures.
SCAIL-2-Q5_K_M.gguf	13.0 GB	Optimal performance sweet-spot for mid-to-high tier GPUs.
SCAIL-2-Q6_K.gguf	14.2 GB	Premium quantization; near-identical output to high precision.
SCAIL-2-Q8_0.gguf	18.1 GB	Maximum fidelity; mathematically closest to native fp16 behaviors.

🛠️ Required Pipeline Dependencies (Not Included)

SCAIL-2 requires an ensemble of specialized modules to establish its end-to-end processing pipeline. Download these separately and place them in their designated ComfyUI structural paths:

1. 📝 Text Encoder

Path: ComfyUI/models/text_encoders/
Download: umt5-xxl-enc-fp8_e4m3fn.safetensors

2. 🎛️ Distillation LoRA (LightX2V step/cfg distill)

Path: ComfyUI/models/loras/
Download: Wan21_I2V_14B_lightx2v_cfg_step_distill_lora_rank64.safetensors

3. 🎯 SAM 3.1 Multiplex

Path: ComfyUI/models/sam/
Download: sam3.1_multiplex_fp16.safetensors

4. 👁️ CLIP Vision

Path: ComfyUI/models/clip_vision/
Download: clip_vision_h.safetensors

5. 🎨 VAE Checkpoint

Path: ComfyUI/models/vae/
Download: wan_2.1_vae.safetensors

Abiray/SCAIL-2-GGUF