SCAIL-2 (character animation) on 24 GB of VRAM
Yes, but only just: Q8_0 leaves 0.6 GB free on 24 GB. June 2026 character animation and replacement built on Wan 2.1 14B: a reference image driven by the motion of another video, without pose skeletons. Native ComfyUI nodes.
Q8_0 (18.1 GB) fits with only 0.6 GB to spare (about 23.4 GB of 24 GB).
Got an RTX 40 or 50? Swap Q8_0 for FP8 (17.7 GB): same quality class, computed natively there.
01What to download
| Part | File | Folder | Size | |
|---|---|---|---|---|
| Model | wan2.1_14B_SCAIL_2-Q8_0.gguf Q8_0 · vantagewithai/SCAIL-2-GGUF-ComfyUI | models/unet | 18.1 GB | Download → |
| Text encoder | umt5_xxl_fp8_e4m3fn_scaled.safetensors UMT5-XXL FP8 (scaled) · Comfy-Org/Wan_2.1_ComfyUI_repackaged | models/text_encoders | 6.7 GB | Download → |
| VAE | Wan2_1_VAE_bf16.safetensors Wan 2.1 VAE BF16 (Kijai) · Kijai/WanVideo_comfy | models/vae | 0.3 GB | Download → |
| Also needed | clip_vision_h.safetensors CLIP Vision H · Comfy-Org/Wan_2.1_ComfyUI_repackaged | models/clip_vision | 1.3 GB | Download → |
| Total download · keep about the same free on disk | 26.4 GB | |||
Alternatives: UMT5-XXL FP16 (11.4 GB). Only for some workflows: SAM 3.1 multiplex FP16 (segmentation) (1.7 GB, character-replacement workflow (masking)). Sizes from Hugging Face, 2026-10-01.
System RAM: 48 GB or more. These files take about 26.4 GB of RAM while loaded, 32.4 GB with Windows and ComfyUI. What happens with less. calculated
02Every file, on 24 GB
| File | Size | Needed | On this card | Quality | Download |
|---|---|---|---|---|---|
| 16-bit SAFETENSORS · Comfy-Org | 32.8 GB | 38.1 GB | 14.1 GB too big | the original weights | Hugging Face → |
| Q8_0 ← GGUF · vantagewithai | 18.1 GB | 23.4 GB | fits · 0.6 GB spare | practically identical to the original | Hugging Face → |
| FP8 SAFETENSORS · Comfy-Org | 17.7 GB | 23.0 GB | fits · 1.0 GB spare | practically identical to the original | Hugging Face → |
| INT8 SAFETENSORS · Comfy-Org | 16.7 GB | 22.0 GB | fits · 2.0 GB spare | practically identical to the original | Hugging Face → |
| Q6_K GGUF · vantagewithai | 14.2 GB | 19.5 GB | fits · 4.5 GB spare | very close to the original | Hugging Face → |
| Q5_K_M GGUF · vantagewithai | 13.0 GB | 18.3 GB | fits · 5.7 GB spare | close; small differences in fine detail | Hugging Face → |
| Q4_K_M GGUF · vantagewithai | 11.5 GB | 16.8 GB | fits · 7.2 GB spare | good; some loss in fine detail and text | Hugging Face → |
| Q3_K_M GGUF · vantagewithai | 9.1 GB | 14.4 GB | fits · 9.6 GB spare | noticeable loss of detail | Hugging Face → |
| Q2_K GGUF · vantagewithai | 7.3 GB | 12.6 GB | fits · 11.4 GB spare | heavy loss; a last resort | Hugging Face → |
“Needed” adds 4.5 GB of working memory for SCAIL-2 and a 0.8 GB reserve. Sizes 2026-10-01.