Extensions/ComfyUI-SAM3
ComfyUI Extension

ComfyUI-SAM3

ComfyUI integration for Meta's SAM3 model enabling open-vocabulary image segmentation using natural language text prompts, with automatic model download, geometric…

By PozzettiAndrea·Created 9 months ago·Updated 27 days ago· 557
PozzettiAndrea/ComfyUI-SAM3
Nodes14
On cloudLocal install
CategorySAM3, SAM3/prompts
Stars557
Updated27 days ago

Nodes (14)

(down)Load SAM3 Model

Get Meta's SAM3 weights into your ComfyUI graph

SAM3
SAM3 BBox Collector 📦

Draw boxes on the image to guide SAM3

SAM3
SAM3 Combine Boxes

Merge single boxes into one prompt SAM3 accepts

SAM3/prompts
SAM3 Combine Points

Merge single points into one prompt SAM3 accepts

SAM3/prompts
SAM3 Create Box

Build a box prompt from center and size

SAM3/prompts
SAM3 Create Point

Build a single point prompt from numbers

SAM3/prompts
SAM3 Text Segmentation

Segment anything by typing what you want

SAM3/Grounding
SAM3 Multiprompt Segmentation

Mask several regions in one pass

SAM3
SAM3 Multi-Region Collector 🎯

Mark several objects for one multiprompt pass

SAM3
SAM3 Point Collector

Click your points right on the image

SAM3
SAM3 Propagate

Track your masked object across every frame

SAM3/video
SAM3 Point Segmentation

Point-and-box masking when text isn't precise enough

SAM3
SAM3 Video Output

Turn the tracked state into masks and frames you can use

SAM3/video
SAM3 Video Segmentation

Mark your target on the first frame

SAM3/video
Readme

[!WARNING] Warning, uses experimental package comfy-env to attempt a one click isolated install. Will download and use pixi package manager.

ComfyUI-SAM3

Installation

Three options, in order of speed → reliability:

  1. ComfyUI Manager (recommended) — search for SAM3 in the Manager and click Install from the highest version displayed. If that doesn't work, try nightly.
  2. Manager via Git URL — in ComfyUI Manager: "Install via Git URL" with https://github.com/PozzettiAndrea/ComfyUI-SAM3.git.
  3. Manual (most reliable): 
    cd ComfyUI/custom_nodes
git clone https://github.com/PozzettiAndrea/ComfyUI-SAM3.git
cd ComfyUI-SAM3
pip install -r requirements.txt --upgrade
python install.py

Please report any problems you hit during installation or use of my nodes — open a Discussion or Issue. Very grateful for your help! 🙏

<div align="center"> <a href="https://pozzettiandrea.github.io/ComfyUI-SAM3/"> <img src="https://pozzettiandrea.github.io/ComfyUI-SAM3/gallery-preview.png" alt="Workflow Test Gallery" width="800"> </a> <br> <b><a href="https://pozzettiandrea.github.io/ComfyUI-SAM3/">View Live Test Gallery →</a></b> </div>

ComfyUI integration for Meta's SAM3 (Segment Anything Model 3). Open-vocabulary image and video segmentation using natural language text prompts.

https://github.com/user-attachments/assets/323df482-1f05-4c69-8681-9bfb4073f766

Credits

  • SAM3: Meta AI Research (https://github.com/facebookresearch/sam3)
  • ComfyUI Integration: ComfyUI-SAM3
  • Interactive Points Editor: Adapted from ComfyUI-KJNodes by kijai (Apache 2.0 License). The SAM3PointsEditor node is based on the PointsEditor implementation from KJNodes, simplified for SAM3-specific point-based segmentation.