SAM 2: Segment Anything in Images and Videos
Source: https://github.com/facebookresearch/sam2
Structured fields
{
"archived": false,
"checked_at": "2026-10-17T00:00:00.000Z",
"usefulness": "Promptable video object segmentation from Meta FAIR: click or box a subject once and propagate masks across frames. The practical AI-roto backbone behind many ComfyUI and compositing pipelines.",
"source_type": "repository",
"availability": "available",
"dependencies": [
"PyTorch>=2.5.1",
"CUDA toolkit (optional kernel)"
],
"source_owner": "Meta FAIR",
"next_check_at": "2026-10-24T00:00:00.000Z",
"hardware_notes": "CUDA GPU recommended; README benchmarks speed on an A100.",
"known_limitations": [
"Successor SAM 3 released; SAM 2 remains the permissively licensed option."
],
"upstream_updated_at": "2026-05-30T02:29:40.000Z"
}Evidence claims
- [upstream_claim] README: code needs python>=3.10, torch>=2.5.1 and torchvision>=0.20.1; installs a custom CUDA kernel compiled with nvcc (failure of the extension build can be ignored with limited post-processing). · locator: README, Installation source
- [sourced_fact] README License section: SAM 2 model checkpoints, demo code and training code are licensed under Apache 2.0; Inter Font and Noto Color Emoji in the demo are under SIL OFL 1.1. · locator: README, License source
- [sourced_fact] GitHub metadata: Apache-2.0, not archived, last push 2026-05-30. · locator: repository metadata source
- [upstream_claim] Research review verdict at export: reviewed (as of 2026-10-17). Recorded by the research pipeline, not a hub review outcome; evidence.review stays unreviewed until an independent reviewer records one.
Rights
| component | license | hosting | redistribution | modification | training | Evidence and notes |
|---|---|---|---|---|---|---|
| code | Apache-2.0 | permitted | permitted | permitted | unknown | Apache-2.0 LICENSE; training-data terms not addressed in the text read. |
| model_weights | Apache-2.0 | permitted | permitted | permitted | unknown | README states the checkpoints are Apache 2.0. |