Segment Anything
Click or box to mask an object. It's for people making images, video, or audio. It's free.
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No affiliate link on file. Outbound goes to github.com. Identity checked October 21, 2026. Score null is from the run on October 21, 2026.
Grade
We tried it ourselves. Grade B.
- Grade
- B · We tried it
- Score
- 7/10
- Price
- Free
Best for
Jobs people use this for.
Test details
Meta's promptable image segmentation model. A click or a box returns a mask. Apache-2.0.
Hands-on review · 2026-10-21
TestedB7/10- CPU-only box: 8 cores, 15 GB RAM (about 4-10 GB free during tests), no GPU.
- 2 images
- rembg mask as reference
SAM cut out the mug from a single click almost exactly like rembg did, handle included and shadow excluded. On a CPU it needs about 7 seconds to read an image, then answers each click in under a second. Auto mode split the hands photo into sensible parts in 27 seconds. It's a strong free tool, though we only measured one image.
Precise one-click masks on CPU. One image measured, against a proxy reference.
- Coverage
- One click, one box, and auto-segment. Mug masks compared with rembg.
- What we tested
- Cut out the FLUX mug from one click and from a box, and auto-segment the hands photo. We compared the mug masks with rembg's cutout as a stand-in reference.
Method
segment-anything (original SAM) with the vit_b checkpoint (375 MB, 1 s download), torch CPU, 8 threads. Point at the mug's centre, box around rembg's mask, SamAutomaticMaskGenerator with 16 points per side. Overlays in sam/contact.png.
Measured
- load_s1.0
- embed_s7.0
- point0.61 s, point [490, 559], scores 0.95, 0.986, 0.918, IoU vs rembg 0.989, 0.981, 0.832, best-scored IoU 0.981
- box0.14 s, IoU vs rembg 0.982, score 1.005
- auto_hands27.2 s, 16 points per side, 22 masks
- visualBoth mug masks include the handle and exclude the shadow. Auto mode cleanly split the two hands, card stacks and table
Pros
- Near-identical to rembg's cutout (IoU 0.98) from one click
- After a 7 s image encoding, each new click takes under 1 s
- Apache-2.0, small 375 MB model
Cons
- Auto-segmenting a whole image takes about 27 s on CPU
- Reference mask was rembg's output, not a hand-drawn one
- Original 2023 SAM; we didn't test SAM 2
- Status
- Not run
- Date
- October 21, 2026
- Time to first output
- —
- Cost
- —
- Result
- —
- Evidence
- Log linked below
Queued task. Generate a fixed prompt set, including one that requires readable text. Log failed takes and cost.
FAQ
What is the agent-tested verdict for Segment Anything?
Click or box to mask an object. It's for people making images, video, or audio. It's free. We tried it ourselves. Grade B.
How much does Segment Anything cost?
Free. Free, open source
Do sponsors outrank this tool?
No. A sponsored slot is labeled and sold separately from tiers. It cannot move this listing.