kijai/ComfyUI-segment-anything-2

Health v2 · maintenance only

Flags: no_releases

Adoption not part of the score

1214 stars · 86 forks observed · 2026-08-28

What it is AI-extracted, prompt v1, taxonomy v1, 2026-08-30, confidence not recorded

A set of ComfyUI custom nodes that bring Meta's Segment Anything 2 (SAM2) models into ComfyUI workflows for promptable image and video segmentation. SAM2 weights are automatically downloaded from Hugging Face in safetensors format into the ComfyUI models/sam2 directory, and generated masks can feed downstream nodes for inpainting or compositing.

Use cases

• use segment anything 2 inside ComfyUI
• generate segmentation masks for images in ComfyUI workflows
• segment and track objects across video frames in ComfyUI
• create masks for inpainting in stable diffusion pipelines
• automatically cut out subjects from images or videos
• run SAM2 models locally with automatic weight downloads

When to choose

• You already work in ComfyUI and want SAM2 segmentation as drop-in nodes in your node graph
• You need promptable image or video segmentation masks to drive inpainting, compositing, or other downstream nodes
• You want safetensors SAM2 weights managed automatically rather than converting checkpoints yourself

When to avoid

• You need a standalone segmentation library or CLI outside ComfyUI - use the original facebookresearch/segment-anything-2 instead
• You need production-hardened tooling - the README marks the project as work in progress and for testing
• You rely on built-in mask postprocessing that requires CUDA extension compilation, which is currently disabled in these nodes

Facets

plugin · maturity active

computer-vision image-processing video-processing machine-learning computer-vision image-processing machine-learning python cross-platform comfyui comfyui-custom-nodes segment-anything-2 sam2 image-segmentation video-segmentation mask-generation promptable-segmentation safetensors inpainting-masks video desktop gpu

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markdown · JSON · MCP: product_card(name="kijai/ComfyUI-segment-anything-2")