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alt.freeweights.image / Flux-2-Klein-4B
From: Comfy-Org <huggingface.co/Comfy-Org>Newsgroups: alt.freeweights.imageSubject:

Flux-2-Klein-4B

Date: 2026-11-14Commit: 5b3abcaSigned: 2DC28CC7B26A283B ✓

Text to image model. Safetensors weights, 27.7 GB in all. Published by Comfy-Org under Apache-2.0.

image27.7GBFlux-2-Klein-4Bsafetensorspermissive
FactsParamsnot statedSize27.7 GBFormatssafetensorsTasktext to imageLicenseApache-2.0From sourcepermissive
$ fw get Comfy-Org/Flux-2-Klein-4B
# manifest sha256 9e392f1b2fd7… · 27.7 GB · 7 files
$ fw verify ./Flux-2-Klein-4B Comfy-Org/Flux-2-Klein-4B
From sourceHosted (signed)Comfy-Org/Flux-2-Klein-4BLast check: 2026-11-14 21:26 UTC
Run at homeGet help

Get help: custom fine-tune or private deploy. We review your setup before we quote.

Fine-tune of FLUX.2-klein-4B.

Works with

Run16Fine-tune8Convert8Scan2
OverviewModel cardFilesUse itLicenseProvenanceModel tree

Overview

Size
27.7 GB
Weights
27.7 GB (safetensors)
Parameters
not stated
Formats
safetensors
Task
text to image
License
Apache-2.0 (permissive)
Files
7, each with a sha256
Publisher
Comfy-Org
Added
2026-11-14
Section
alt.freeweights.image
Lineage

Original release from the publisher.

Base model: black-forest-labs/FLUX.2-klein-4B

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.co2026-11-14 21:26 UTCpassed

Model card

From the publisher at commit 5b3abca. Shown as plain text with links; images open at the publisher.

Flux 2 Klein#

Repackaged model files for ComfyUI.

Original model repository:

Place the files in the following folders:

📂 ComfyUI/
├── 📂 models/
│   ├── 📂 diffusion_models/
│   │   ├── flux-2-klein-4b.safetensors
│   │   └── flux-2-klein-base-4b.safetensors
│   ├── 📂 text_encoders/
│   │   ├── qwen_3_4b.safetensors
│   │   └── qwen_3_4b_fp4_flux2.safetensors
│   ├── 📂 vae/
│   │   └── flux2-vae.safetensors

Workflows#

| Workflow | Thumb

| FLUX.2 Klein 4B: Text to Image | FLUX.2 Klein 4B: Text to Image

Files

7 files · 27.7 GBWeights 27.7 GB (safetensors). Sizes and sha256 from the signed manifest.
Hide all 7 files with their sha256
FileSizesha256
.gitattributes1.52 KB11ad7efa24975ee4b0c3c3a38ed18737f0658a5f75a0a96787b576a78a023361
README.md1.76 KBb204b17a3cc09c40c6b600d200de6733fbf1081c741ff0f0ad22100e2e9561b5
split_files/diffusion_models/flux-2-klein-4b.safetensors7.75 GBec3d4e733a771f61c052fb4856c48b336c55eaf2c65487c2a1faeb9bbda7a343
split_files/diffusion_models/flux-2-klein-base-4b.safetensors7.75 GB9c5fed22b76baea749d88fc2abe3ad53245e7b21a0d353a762665eea00043b92
split_files/text_encoders/qwen_3_4b.safetensors8.04 GB6c671498573ac2f7a5501502ccce8d2b08ea6ca2f661c458e708f36b36edfc5a
split_files/text_encoders/qwen_3_4b_fp4_flux2.safetensors3.85 GB3eab03a77adb0ee5304a4e677d5c10ac22f9049c1d7c894adca4f8bb39206ca8
split_files/vae/flux2-vae.safetensors336 MB868fe7b343cc8f3a19dbcfcafbc3d5f888802be3f89bd81b65b3621a066ce8f3
VersionsEach time the pinned upstream commit or file list changed in this repo. Newest first.
Upstream commitDateContents
5b3abca5c0 pinned now manifest updated, same commit2026-11-14 21:26 UTC7 files · 27.7 GB
5b3abca5c02026-11-14 21:26 UTC7 files · 27.7 GB

Use it

$ fw get Comfy-Org/Flux-2-Klein-4B
# manifest sha256 9e392f1b2fd7… · 27.7 GB · 7 files
$ fw verify ./Flux-2-Klein-4B Comfy-Org/Flux-2-Klein-4B
fw.pyChecks the signature and every sha256, tries each source in order, resumes.
$ python3 fw.py get https://freeweights.allternit.com/manifests/Comfy-Org/Flux-2-Klein-4B.json --dir ./Flux-2-Klein-4B $ python3 fw.py verify ./Flux-2-Klein-4B ./Comfy-Org__Flux-2-Klein-4B.json
hfThe Hugging Face CLI with one setting. Same repo id.
$ HF_ENDPOINT=https://freeweights.allternit.com hf download Comfy-Org/Flux-2-Klein-4B --revision 5b3abca5c0dc1ecd4eaf3340868d09063fc1c965 --local-dir ./Flux-2-Klein-4B
Packaged for ComfyUI. Most image, video and music models run in ComfyUI . Check the publisher's page for the workflow. Freeweights does not host it.
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. 2026-11-14
Text in
README.md
Text sha256
b204b17a3cc09c40c6b600d200de6733fbf1081c741ff0f0ad22100e2e9561b5
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: Comfy-Org <huggingface.co/Comfy-Org>Newsgroups: alt.freeweights.imageSubject: Flux-2-Klein-4BDate: 2026-11-14Commit: 5b3abcaSigned: 2DC28CC7B26A283B ✓
Upstream
Comfy-Org/Flux-2-Klein-4B
Pinned commit
5b3abca5c0dc1ecd4eaf3340868d09063fc1c965
Manifest
Flux-2-Klein-4B.json · .minisig
Manifest sha256
9e392f1b2fd7ce4fe9d0b0643a32ced8b074988409b5f67f9d7b076943bbc464
Signature
minisign, Ed25519, key 2DC28CC7B26A283B
Created
2026-11-14 21:26 UTC
Generator
freeweights-manifest/0.1.0
Takedowns
None.

How to verify

$ curl -O https://freeweights.allternit.com/manifests/Comfy-Org/Flux-2-Klein-4B.json $ curl -O https://freeweights.allternit.com/manifests/Comfy-Org/Flux-2-Klein-4B.json.minisig $ minisign -Vm Flux-2-Klein-4B.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

Parent

black-forest-labs/FLUX.2-klein-4B · this model is a finetune of it

No model in the catalog names this one as its parent.

Get it
Download
$ HF_ENDPOINT=https://freeweights.allternit.com hf download Comfy-Org/Flux-2-Klein-4B
Open in Freeweights Studio

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

Signed manifest
minisign, key 2DC28CC7B26A283B. Flux-2-Klein-4B.json. Provenance. Takedown history: none.
Source
huggingface.co/Comfy-Org/Flux-2-Klein-4B

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