Open Model Weights
Home / Models / flux2-dev

COMFY-ORG · FIELD-VERIFIED

flux2-dev

Checked against the listed Hugging Face source repository on 2026-10-03. Unknown values are left explicit rather than inferred.

Source repository ↗Compare this model →History & diff →Field-verified 2026-10-03Machine-readable JSON ↗
DeveloperComfy-Org
ParametersPending verification
ContextNot declared in checked config/model card
Weight files7
Licenseflux-1-dev-non-commercial-license
Accesspublic
Evidence statusSource-first verified
Repository revision checked2026-10-03
Full field verification2026-10-02
Source policy →Methodology →

MODEL INTELLIGENCE · SOURCE-FIRST

What is flux2-dev?

OMW evidence review3 Oct 2026

Open Model Weights records flux2-dev as a Pending verification-parameter open-weight model in the flux2-dev family, with Comfy-Org listed as the developer. The checked source repository provides 7 recognized weight artifacts, format evidence for Safetensors and a verified context window of Not declared in checked config/model card. Values that are not evidenced in the checked sources remain explicitly undisclosed or unknown.

The repository declares flux-1-dev-non-commercial-license. Commercial-use status requires manual review. Open Model Weights reports the checked license evidence and classification; this is not legal advice.

Lineage metadata declares black-forest-labs/FLUX.2-dev, ByteZSzn/Flux.2-Turbo-ComfyUI as a related base model with the relation declared relationship. A training recipe and standard training-data disclosure were not found by the current verifier.

Source repository ↗Model card ↗Configuration ↗License evidence ↗

DEPLOYMENT PROFILE

Weight memory, without pretending it is a deployment guarantee.

These bars visualize weight-only decimal-GB estimates. They exclude KV cache, activations, runtime overhead, optimizer state and sharding.

WEIGHT-ONLY MEMORY

No weight-only memory estimate is available from the verified parameter count.

FIELD EVIDENCE MAP
WeightsVerified
LicenseVerified
Commercial useUnknown
ContextNot Disclosed
FormatsVerified
LineageDeclared
Training recipeNot disclosed in checked repository
Training dataNot disclosed in checked standard metadata/model card
RuntimeSource-derived · not runtime-tested

LICENSE & USE

flux-1-dev-non-commercial-license

Commercial-use status requires manual review

Declared licenseflux-1-dev-non-commercial-license
ClassificationUnknown
VerificationLicense file checked

This section summarizes the checked repository evidence. It is not legal advice. Inspect license evidence ↗

LINEAGE & PROVENANCE

What the checked sources disclose — and what they do not.

Open Model Weights does not infer a hidden base model or training corpus when the checked sources do not declare one.

LINEAGE
BASE / PARENTblack-forest-labs/FLUX.2-dev, ByteZSzn/Flux.2-Turbo-ComfyUIDeclared Relation
declared
CURRENT RECORDflux2-devflux2-dev
TRAINING DISCLOSURE
Training recipeNot disclosed in checked repository
Training dataNot disclosed in checked standard metadata/model card
Familyflux2-dev

RUNTIME SIGNALS

Compatibility claims stay attached to their evidence level.

Declared and model-card-mentioned runtimes are discovery signals. They are not treated as Open Model Weights runtime tests unless explicitly measured.

Declareddiffusion-single-file
OMW runtime testNot performed

EVIDENCE TRAIL

Sources and observed history.

This is where the article remains auditable: source links on one side, the registry's observed change history on the other.

PrimaryModel Repositoryhttps://huggingface.co/Comfy-Org/flux2-devInspect source ↗PrimaryModel Apihttps://huggingface.co/api/models/Comfy-Org/flux2-devInspect source ↗PrimaryModel Cardhttps://huggingface.co/Comfy-Org/flux2-dev/blob/main/README.mdInspect source ↗PrimaryConfighttps://huggingface.co/Comfy-Org/flux2-dev/blob/main/config.jsonInspect source ↗Primary Or DeclaredLicensehttps://huggingface.co/black-forest-labs/FLUX.1-Krea-dev/blob/main/LICENSE.mdInspect source ↗
Repository revision check

Listed Hugging Face source repository SHA unchanged; prior field evidence retained.

Repository revision check

Listed Hugging Face source repository SHA unchanged; prior field evidence retained.

Field-by-field verification

Checked Hugging Face API metadata, exact repository file list, model card and config when accessible.

Registry record created

Previous verification level: discovered-pending.

RELATED RECORDS

Continue through structurally related records.

Family matches are preferred; otherwise the fallback requires the same developer and model modality. No quality score or recommendation rank is used.

No directly related registry records are available under the current family/developer fields.

FIELD-BY-FIELD RECORD

Inspect the underlying evidence.

The editorial layer above summarizes only what the verified registry can support. The sections below expose the exact fields, artifacts, source links and verification states.

WeightsLicenseHardwareFormatsLineageTrainingRuntimeSourcesVerification

01 · WEIGHTS

Exact repository artifacts

Statusverified-available
Accesspublic
RepositoryComfy-Org/flux2-dev
Recognized weight files7
Show all 7 exact weight files
HF API file listing ↗

02 · LICENSE

License & commercial use

Declared licenseflux-1-dev-non-commercial-license
License IDother
Commercial useCommercial-use status requires manual review
Repository license filesNone observed

Classification describes the checked license terms; it is not legal advice.

License / model-card evidence ↗

03 · HARDWARE

Weight-memory estimate

BF16 / FP16Not calculated
FP8 / INT8Not calculated
INT4Not calculated

Total parameter count unavailable.

04 · FORMATS

Formats & precision evidence

Safetensors
BF16: observedFP16: not observedFP8: observedINT8: not observedINT4: not observedGGUF: not observed

“Not observed” means no matching repository artifact/name/dtype signal was found; it does not prove no third-party conversion exists.

05 · LINEAGE

Base model & family

Familyflux2-dev
Variantflux2-dev
Declared base modelblack-forest-labs/FLUX.2-dev, ByteZSzn/Flux.2-Turbo-ComfyUI
RelationNot declared

06 · TRAINING ASSETS

Recipe & data disclosure

Training recipenot-disclosed-in-checked-repository
Data disclosurenot-disclosed-in-standard-metadata-or-obvious-model-card-section
EvaluationsNot classified by automated verifier
Intermediate checkpointsNot classified by automated verifier

07 · RUNTIME SUPPORT

Declared and mentioned runtimes

Declared librarydiffusion-single-file
Declared/taggeddiffusion-single-file
Mentioned in model cardNone observed
Artifact signalsNone
Tested by Open Model WeightsNo — source-derived support only

Open Model Weights does not claim runtime compatibility unless it is declared, tagged, mentioned by the publisher, or evidenced by an artifact. No inference benchmark is implied.

08 · SOURCES

Field evidence

Primary / declared sources5
Repository revisioned33133cd564
Source policyHow evidence is classified →
model_repositoryhttps://huggingface.co/Comfy-Org/flux2-dev
model_apihttps://huggingface.co/api/models/Comfy-Org/flux2-dev
model_cardhttps://huggingface.co/Comfy-Org/flux2-dev/blob/main/README.md
confighttps://huggingface.co/Comfy-Org/flux2-dev/blob/main/config.json
licensehttps://huggingface.co/black-forest-labs/FLUX.1-Krea-dev/blob/main/LICENSE.md

09 · VERIFICATION HISTORY

Checked, not assumed

Repository revision check

listed Hugging Face source repository SHA unchanged; prior field evidence retained.

Repository revision check

listed Hugging Face source repository SHA unchanged; prior field evidence retained.

Field-by-field verification

Checked Hugging Face API metadata, exact repository file list, model card and config when accessible.

Registry record created

Previous verification level: discovered-pending.

licenseverified
commercial useunknown
contextnot-disclosed
weight filesverified
formatsverified
base modeldeclared
training recipenot-disclosed-in-checked-repository
data disclosurenot-disclosed-in-standard-metadata-or-obvious-model-card-section
runtime supportsource-derived-not-runtime-tested