sam2.1_hiera_tiny is Meta's Segment Anything 2.1 tiny checkpoint, and none of the candidate sources documents that exact model. The closest match is Replicate's hosted SAM 2 image and video segmentation actions 18, which run the same model family through an API. Other sources cover general vision or segmentation tooling without naming this checkpoint.
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Ultralytics YOLOultralytics.comverified and signed
Provides real-time computer vision models with a SAM3 entry in its action record 20, an alternative segmentation option from the same vision family.
+2 community tools built for it
for agents: SAM3 · YOLOv3 · YOLO
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Sources
- 7MIT - Massachusetts Institute of Technologyweb.mit.edu · read 2026-10-29
- 8Replicate - Run AI with an APIreplicate.com · read 2026-10-29
- 10Ultralytics YOLO: The Leader in Real-Time Computer Visionultralytics.com · read 2026-10-29
- 17atomisticskills: declares "register_model" (the record we read)github.com · read 2026-10-24
- 18meta/sam-2: declares "meta/sam-2" (the record we read and signed)unfragile.ai · read 2026-10-24
- 20ultralytics: declares "SAM3" (the record we read and signed)unfragile.ai · read 2026-10-24
For agents: the 10 actions behind this answer
retrieveFineTune · OpenAI API verified and signed
Gets info about the fine-tune job. [Learn more about Fine-tuning](/docs/guides/fine-tuning)
tao-train-segformer · tao-train-segformer verified and signed
SegFormer for semantic segmentation. Lightweight transformer-based architecture with hierarchical feature extraction, efficient for real-time segmentation tasks. Use when training, evaluating, exporting, quantizing, or running inference for a TAO SegFormer model. Trigger phrases include "train SegFo
workers-ai-post-run-model · Cloudflare API verified and signed
Run a Workers AI model
doublecheck · doublecheck verified and signed
Three-layer verification pipeline for AI output. Extracts verifiable claims, finds supporting or contradicting sources via web search, runs adversarial review for hallucination patterns, and produces a structured verification report with source links for human review.
· Research website read, tools not yet checked
Discover Google Research. We publish research papers across a wide range of domains and share our latest developments in AI and science research.
python · fastcore verified and signed
register_model · atomisticskills found in code, not yet checked
Register a fine-tuned MLIP checkpoint in the local model registry.
meta/sam-2 · meta/sam-2 verified and signed
SAM 2: Segment Anything v2 (for Images)
XLNet · sentence-transformers verified and signed
SAM3 · ultralytics verified and signed
Labels are the instruments' verdict and are never changed by ranking. Agents and robots get this same answer as JSON at /api/v1/find?q=…&answer=1 and through the MCP server.