SAM3 Segmenter
Load Video
Demo
Load Model
WebGPU is not available in this browser. SAM3 inference will use WASM fallback, which is significantly slower (~10-30s per frame).
Load a video to begin
Loading SAM3 model...
~374MB download (cached after first load)
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Load a video to begin
Model quantization
q4 (~353MB)
q4f16 (~283MB)
fp16 (~893MB)
fp32 (~1.8GB)
Mask opacity
0.50
Track buffer
frames
IoU threshold
0.30
Tracker enabled
No tracks yet. Click on the video to segment an object.
Click a track to select it for editing. Click the video to re-segment on the current frame.
Clear