Meta AI Releases SAM 3.1

SAM 3.1

Max Objects Tracked
16
Speed Improvement
2x
H100 Throughput
32 FPS

Meta AI released SAM 3.1, a drop-in update to SAM 3 introducing object multiplexing for tracking up to 16 objects in a single forward pass. This improves video processing efficiency without accuracy loss, doubling speed to 32 FPS on H100 GPUs for medium-object videos. The model checkpoint and codebase are now openly available.