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alt.freeweights.vision / sam2_hiera_base_plus.fb_r896_2pt1
From: timm <huggingface.co/timm>Newsgroups: alt.freeweights.visionSubject:

sam2_hiera_base_plus.fb_r896_2pt1

Date: 2026-11-15Commit: a544373Signed: 2DC28CC7B26A283B ✓

Image feature extraction model with 69M parameters. Safetensors weights, 550 MB in all. Published by timm under Apache-2.0.

69M params550MBsam2_hiera_base_plus.fb_r896_2pt1safetensorspermissive
FactsParams69MSize550 MBFormatssafetensorsTaskimage feature extractionLicenseApache-2.0From sourcepermissive
$ fw get timm/sam2_hiera_base_plus.fb_r896_2pt1
# manifest sha256 dcd1b2030ca3… · 550 MB · 5 files
$ fw verify ./sam2_hiera_base_plus.fb_r896_2pt1 timm/sam2_hiera_base_plus.fb_r896_2pt1
From sourceHosted (signed)timm/sam2_hiera_base_plus.fb_r896_2pt1Last check: 2026-11-15 03:49 UTC
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Works with

Run8Fine-tune7Convert8Scan2

Runs with

Ranked by fit to this model (safetensors), then by GitHub stars.

TransformersLocalAItinygradTriton Inference ServerBentoMLCTranslate2ExLlamaV2LitServe
OverviewModel cardFilesUse itLicenseProvenanceModel tree

Overview

Size
550 MB
Weights
275 MB (safetensors)
Parameters
69M
Formats
safetensors
Task
image feature extraction
License
Apache-2.0 (permissive)
Files
5, each with a sha256
Publisher
timm
Added
2026-11-15
Section
alt.freeweights.vision
Lineage

Original release from the publisher.

Where these bytes come from
Publisher at the pinned commit→You

Sources are tried in order. A file counts only when its size and sha256 match the manifest. Sources are checked when you ask for them, not on a timer.

Sources
BadgeHostLast checkResult
From sourcehuggingface.co2026-11-15 03:49 UTCpassed

Model card

From the publisher at commit a544373. Shown as plain text with links; images open at the publisher.

Model card for sam2_hiera_base_plus.fb_r896_2pt1#

timm SAM2 (HieraDet image encoder only) weights from https://huggingface.co/facebook/sam2.1-hiera-base-plus

Files

5 files · 550 MBWeights 275 MB (safetensors). Sizes and sha256 from the signed manifest.
Hide all 5 files with their sha256
FileSizesha256
.gitattributes1.52 KB11ad7efa24975ee4b0c3c3a38ed18737f0658a5f75a0a96787b576a78a023361
README.md264 B1dbda0ca6f697e07f0942ed9239ae89ee9e12e52a9062410ab646130372895f7
config.json646 Bd52a09e26e80153788493c1fc0f30ae4601a836d1d699800ba41c8a4dcb64ba3
model.safetensors275 MBb742f39baf1d55c01277619240649678d88c58e3cdf3bc10407e868ea6e3ee79
pytorch_model.bin275 MB04ce78ab1b14d3fe2a2f15a7abc807ee4eed6949511966ff1a22cbc087b32926
VersionsEach time the pinned upstream commit or file list changed in this repo. Newest first.
Upstream commitDateContents
a54437359d pinned now2026-11-15 03:49 UTC5 files · 550 MB

Use it

$ fw get timm/sam2_hiera_base_plus.fb_r896_2pt1
# manifest sha256 dcd1b2030ca3… · 550 MB · 5 files
$ fw verify ./sam2_hiera_base_plus.fb_r896_2pt1 timm/sam2_hiera_base_plus.fb_r896_2pt1
fw.pyChecks the signature and every sha256, tries each source in order, resumes.
$ python3 fw.py get https://freeweights.allternit.com/manifests/timm/sam2_hiera_base_plus.fb_r896_2pt1.json --dir ./sam2_hiera_base_plus.fb_r896_2pt1 $ python3 fw.py verify ./sam2_hiera_base_plus.fb_r896_2pt1 ./timm__sam2_hiera_base_plus.fb_r896_2pt1.json
hfThe Hugging Face CLI with one setting. Same repo id.
$ HF_ENDPOINT=https://freeweights.allternit.com hf download timm/sam2_hiera_base_plus.fb_r896_2pt1 --revision a54437359df91f9591fd48d9c39c912abc567592 --local-dir ./sam2_hiera_base_plus.fb_r896_2pt1
Run at home

License

Name
Apache License 2.0
Id
Apache-2.0
Class
Permissive
Redistribution
yes
Listing
Hosted (signed)
Decided
License as declared by the publisher. No person read it. 2026-11-15
Text in
README.md
Text sha256
1dbda0ca6f697e07f0942ed9239ae89ee9e12e52a9062410ab646130372895f7
Terms gate
No extra terms beyond the license.

Read the license text

Licenses are checked against the license table. A custom license passes only after a person reads it.

Provenance

From: timm <huggingface.co/timm>Newsgroups: alt.freeweights.visionSubject: sam2_hiera_base_plus.fb_r896_2pt1Date: 2026-11-15Commit: a544373Signed: 2DC28CC7B26A283B ✓
Upstream
timm/sam2_hiera_base_plus.fb_r896_2pt1
Pinned commit
a54437359df91f9591fd48d9c39c912abc567592
Manifest
sam2_hiera_base_plus.fb_r896_2pt1.json · .minisig
Manifest sha256
dcd1b2030ca30995eb9409defb38823cafb1793162672e08d04b82b24b18dea5
Signature
minisign, Ed25519, key 2DC28CC7B26A283B
Created
2026-11-15 03:49 UTC
Generator
freeweights-manifest/0.1.0
Takedowns
None.

How to verify

$ curl -O https://freeweights.allternit.com/manifests/timm/sam2_hiera_base_plus.fb_r896_2pt1.json $ curl -O https://freeweights.allternit.com/manifests/timm/sam2_hiera_base_plus.fb_r896_2pt1.json.minisig $ minisign -Vm sam2_hiera_base_plus.fb_r896_2pt1.json -P RWQ7KGqyx4zCLXtUFOqvfv8L3g+8fpKJ1FsuxPyOYMF+4KufbUxKq1Oq $ shasum -a 256 <file> # compare with the Files tab

A manifest whose signature fails must be rejected. A file whose size or sha256 does not match must be discarded. Verify a download

Model tree

No related models in this catalog.Nothing here lists this model as its parent, and it names no parent.
Get it
Download
$ HF_ENDPOINT=https://freeweights.allternit.com hf download timm/sam2_hiera_base_plus.fb_r896_2pt1
Open in Freeweights Studio

Pull, verify and run it in the Allternit app on Desktop, web or phone.

Signed manifest
minisign, key 2DC28CC7B26A283B. sam2_hiera_base_plus.fb_r896_2pt1.json. Provenance. Takedown history: none.
Source
huggingface.co/timm/sam2_hiera_base_plus.fb_r896_2pt1

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