| File | sam3.1_multiplex_fp16.safetensors |
| What it is | SAM 3.1 multiplex FP16 (segmentation) (other) |
| Size | 1.7 GB |
| Folder | ComfyUI/models/checkpoints/ |
| Loader node | Load Checkpoint, or the loader in the model’s official workflow |
| Source | Comfy-Org/sam3.1 on Hugging Face |
Download sam3.1_multiplex_fp16.safetensors (1.7 GB)
Where to put it
Put the file in ComfyUI/models/checkpoints/ (in the portable version: ComfyUI_windows_portable/ComfyUI/models/checkpoints/). Then press R in ComfyUI, or restart it, so the file shows up in Load Checkpoint, or the loader in the model’s official workflow.
If a workflow says “Value not in list” for this node, the file name in the workflow is different from yours, or the file is in another folder. Click the node and pick the file from the list.
What it does
Needed only: character-replacement workflow (masking).
Models that use sam3.1_multiplex_fp16.safetensors
| Model | Type | Fits from | Runs well from |
|---|---|---|---|
| SCAIL-2 (character animation) | video | 13 GB | 22 GB |
VRAM of the graphics card, for the model with the file this site picks for that card. Open a model to see every file and every GPU.
Not sure your card can run these models? Check your GPU. All shared files: ComfyUI model files.
Size and source read from Hugging Face (2026-10-01).