black-forest-labs/flux/flux2-dev-nvfp4
Source details
Source revision: 0fb5437b4315fb344e412f317bb270c5fbd66603de72fa023834117bf298b71b
Black Forest Labs · Image
FLUX models: Versions, specs, GPU requirements & hosting
Black Forest Labs FLUX provides transformer-based image generation and editing releases with materially different checkpoint sizes and commercial terms.
Overview and history
FLUX is an official Black Forest Labs model family represented here through independently verified release, checkpoint, license, runtime and hardware evidence. Black Forest Labs FLUX provides transformer-based image generation and editing releases with materially different checkpoint sizes and commercial terms. Current public releases are grouped by the Image Generation tracks so sibling sizes and specialist branches are not presented as false chronological generations.
FusionPointAI currently tracks 9 certified public FLUX releases. The catalogue preserves release dates and evaluates Current, Recent, Previous and Legacy status within each model track rather than by database insertion order.
Image synthesis and editing
Multiple deployment scales
Explicit release-level license boundaries
Architecture and model range
This Image generation family has 9 source-certified public releases. Architecture, parameter counts, and pipeline details are shown only when the official source publishes them; language-model-only context and KV-cache assumptions are not applied.
Public releases9
Model tracks1
Current generationFLUX.2 Klein 4B
Last verified2026-09-04T00:00:00.000000Z
Generations, tracks and variants
General
flux-2-dev
Recent generationflux-2-klein-9b
Recent generation 3 sibling variantsFLUX.2-klein-9b-nvfp4
The manufacturer has not published this information. parameters · N/A / Not directly comparable context
Quantization
Unknown / Not Recommendable
FLUX.2-klein-9B
The manufacturer has not published this information. parameters · N/A / Not directly comparable context
Base
Unknown / Not Recommendable
FLUX.2-klein-9b-fp8
The manufacturer has not published this information. parameters · N/A / Not directly comparable context
Quantization
Unknown / Not Recommendable
flux-2-klein-4b
Recent generation 2 sibling variantsFLUX.2
Current generation 3 sibling variantsFLUX.2 Klein 9B
9.1B parameters · N/A / Not directly comparable context
Image · Dense
Rectified-flow transformer
Non-Commercial Only
FLUX.2-dev
32.0B parameters · N/A / Not directly comparable context
Image · Dense
Rectified-flow transformer
Non-Commercial Only
FLUX.2 Klein 4B
3.9B parameters · N/A / Not directly comparable context
Image · Dense
Rectified-flow transformer
Deployment ecosystem
Choose a specific FLUX release and certified checkpoint before sizing hardware. FusionPointAI rejects unknown runtime configurations and applies workload-specific memory rules before separating compatible hardware from rentable inventory.
Validate the exact checkpoint, license, runtime, precision, input and output dimensions, batch size, and GPU memory. Resource sizing uses rules appropriate to Image generation workloads.
Common use cases
Private Image generation workloads
Controlled model evaluation
Production deployment planning
License overview
Licenses are certified per release, not inferred from the provider. Review the release page before commercial deployment because terms can differ between generations and variants.
Commercial-use status is a source-backed catalogue classification, not legal advice. Follow the linked official license and attribution requirements.
Release timeline
black-forest-labs/flux/flux2-klein-9b-fp8
Source details
Source revision: 79055ceaa3992353e39624afca4092bf9c52f46e074e00d084d8a8db6773b7c4
black-forest-labs/flux/flux2-klein-9b-nvfp4
Source details
Source revision: 596f8bf1fa07b3acbb56c05cf947a9c47dcd6bc39df3513f32fcf2aceff45bad
black-forest-labs/flux/flux2-klein-4b-nvfp4
Source details
Source revision: 1723671b80346868d4a85881796c2b5b2662c94f320f1e0f3860059bdbf5886b
black-forest-labs/flux/flux2-klein-4b-fp8
Source details
Source revision: 8380ef0173cf338920d0d23042e74a9e62bc3268be862bd17636f79086e95ca8
black-forest-labs/flux/flux-2-dev
Source details
Source revision: 3cd4e6314c439bf0cb5779607c9f1b1b8efa3dcf245f2387688a3468e6854a18
black-forest-labs/flux/flux2-klein-9b
Source details
Source revision: 28f43c361a00f2641a3911bb211a253cb830e575df746fbc38a9859a6aec37f1
black-forest-labs/flux/flux-2-klein-4b
Source details
Source revision: 4f9ba59dd8f5f6752667d54a9f93a2c379fcd9ce26069cc481fdaca7a833343f
black-forest-labs/flux/flux-2-klein-9b
Source details
Source revision: ffacaedf4c186e394a4ff9e1cf43ae38df94fd2558ef42471f552179b1867b41
black-forest-labs/FLUX.2-klein-9b-nvfp4 @ 2026-02-24T13:07:57Z
black-forest-labs/FLUX.2-klein-4b-fp8 @ 2026-02-24T13:01:26Z
black-forest-labs/FLUX.2-klein-9b-fp8 @ 2026-02-24T12:32:14Z
black-forest-labs/FLUX.2-klein-9B @ 2026-02-24T12:19:11Z
black-forest-labs/FLUX.2-dev @ 2026-02-18T12:49:22Z
Frequently asked questions
Which FLUX release is current?
Current releases are FLUX.2 Klein 4B, FLUX.2 Klein 9B, FLUX.2-dev, evaluated within their respective tracks.
Can FLUX be self-hosted?
Only releases with a verified official checkpoint and supported runtime configuration are presented as deployable.
Which GPU should run FLUX?
GPU selection depends on the exact variant, checkpoint precision, context length and concurrency; use the release hardware recommendations rather than the family name alone.
Official references
- huggingface.co
- huggingface.co
- huggingface.co
- modelscope.cn
- modelscope.cn
- modelscope.cn
- modelscope.cn
- huggingface.co
- huggingface.co
Last verified: 2026-09-04