SAM 3.1: Segment Anything Model
SAM 3.1 is Meta's latest Segment Anything Model with multiplex decoding, providing promptable image segmentation for ComfyUI.
SAM 3.1 (Segment Anything Model 3.1) is Meta's latest image segmentation model with multiplex decoding capabilities. It can segment any object in an image based on points, boxes, or text prompts. Repackaged for ComfyUI for use in segmentation and masking workflows.
Usage in ComfyUI
Place the model file in ComfyUI/models/checkpoints/. Requires a ComfyUI custom node that supports SAM 3.1 for loading and inference.
| Developer | Meta (Facebook AI Research) |
| Release Date | 2025 |
| Architecture | Hierarchical Vision Transformer (Hiera Large) + Multiplex Decoding |
| License | SAM-License |
| Type | Image Segmentation |
| Capabilities | Promptable segmentation (points, boxes, text) |
Links
- Hugging Face (Comfy-Org): Comfy-Org/sam3.1
- Upstream (Meta): facebook/sam3.1
Guides and workflows related to this model series.
No articles found.