Model family · Black Forest Labs
FLUX
视觉生成模型系列，覆盖图片生成、编辑与视频；模型、Playground 产品和自托管许可需分开展示。
Applications and interfaces are not necessarily underlying models. Prices retain their unit and scope; recheck before purchase. Historical or deprecated entries are documentation, not recommendations.
Models #
- Name
- FLUX 3 Image
- Version
- 3
- Status
- Official API documentation available
- Name
- FLUX 3 Image Klein
- Version
- 3; 5.6B
- Status
- Official open weights and API offering; commercial licensing separate
- Name
- FLUX 3 Video
- Version
- 3
- Status
- Official product offering
- Name
- FLUX.2 [klein 4B]
- Version
- 2
- Status
- Listed in official model catalog
- Name
- FLUX.2 [klein 9B]
- Version
- 2
- Status
- Listed in official model catalog
- Name
- FLUX.2 [pro]
- Version
- 2
- Status
- Listed in official model catalog
- Name
- FLUX.2 [max]
- Version
- 2
- Status
- Listed in official model catalog
- Name
- FLUX.2 [flex]
- Version
- 2
- Status
- Listed in official model catalog
- Name
- FLUX.2 [dev]
- Version
- 2
- Status
- Open weights; no hosted API endpoint
- Name
- FLUX.1 Kontext [pro]
- Version
- 1 Kontext
- Status
- Listed in official catalog
- Name
- FLUX.1 Kontext [max]
- Version
- 1 Kontext
- Status
- Listed in official catalog
- Name
- FLUX.1 Kontext [dev]
- Version
- 1 Kontext
- Status
- Open weights; editing only; non-commercial license
- Name
- FLUX1.1 [pro] / Ultra
- Version
- 1.1
- Status
- Previous generation in current documentation
Products #
- Name
- BFL Playground
- Relationship
- Browser interface, not a separate model
- Ui access
- Official Playground link; account/credits required
- Api access
- BFL API is separately documented; same published usage pricing
- Name
- FLUX API
- Relationship
- Hosted access to supported model endpoints
- Ui access
- Not established from reviewed sources
- Api access
- Documented API; FLUX 3 Image endpoint /v1/flux-3-image
Capabilities #
- Task
- FLUX 3 Image generation and editing
- Inputs
- text
- 1–10 reference images
- Outputs
- image
- Resolutions
- 768sq
- 1k
- 1.5k
- 2k
- 4k; about 16MP
- Formats
- PNG shown in official example; exhaustive formats not verified
- Limitations
- Download result within 1 hour
- Reference images at least 256×256 and at most 16MP
- Endpoint fields differ from earlier FLUX APIs
- Task
- FLUX.2 generation and editing
- Inputs
- text
- reference images
- Outputs
- image
- Resolutions
- Up to 4MP
- Formats
- Not recorded, not necessarily unsupported
- Limitations
- Reference counts vary by variant
- Task
- FLUX 3 Video
- Inputs
- text
- image
- source video
- Outputs
- video with synchronized audio
- Resolutions
- HD–UHD (4K) advertised on current model page
- Formats
- Not recorded, not necessarily unsupported
- Limitations
- Help article describes up to 20 seconds and only HD/FHD; do not apply those older limits to every current variant without endpoint verification
Pricing #
- Scope
- API/Playground
- Model or product
- FLUX 3 Image
- Amount
- Not established from reviewed sources
- Currency
- USD
- Unit
- image
- Conditions
- Resolution-dependent; opened pricing table had empty price cells
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API/Playground
- Model or product
- FLUX 3 Image Klein
- Amount
- 0.008
- Currency
- USD
- Unit
- image
- Conditions
- 768×768; text-to-image and editing same price
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API/Playground
- Model or product
- FLUX 3 Image Klein
- Amount
- 0.009
- Currency
- USD
- Unit
- image
- Conditions
- 1K; text-to-image and editing same price
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API/Playground
- Model or product
- FLUX 3 Image Klein
- Amount
- 0.011
- Currency
- USD
- Unit
- image
- Conditions
- 1.5K; text-to-image and editing same price
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API/Playground
- Model or product
- FLUX 3 Image Klein
- Amount
- 0.014
- Currency
- USD
- Unit
- image
- Conditions
- 2K; text-to-image and editing same price
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API/Playground
- Model or product
- FLUX 3 Image Klein
- Amount
- 0.036
- Currency
- USD
- Unit
- image
- Conditions
- 4K; text-to-image and editing same price
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API/Playground
- Model or product
- FLUX.2 [pro]
- Amount
- 0.03
- Currency
- USD
- Unit
- megapixel
- Conditions
- Starting text-to-image rate in official help; recheck calculator
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API/Playground
- Model or product
- FLUX.2 [pro]
- Amount
- 0.045
- Currency
- USD
- Unit
- megapixel
- Conditions
- Starting editing rate in official help; recheck calculator
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API/Playground
- Model or product
- FLUX.1 Kontext [pro]
- Amount
- 0.04
- Currency
- USD
- Unit
- image
- Conditions
- Published help rate
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API/Playground
- Model or product
- FLUX.1 Kontext [max]
- Amount
- 0.08
- Currency
- USD
- Unit
- image
- Conditions
- Published help rate
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
- Scope
- API/Playground
- Model or product
- FLUX 3 Video
- Amount
- 0.17
- Currency
- USD
- Unit
- output second
- Conditions
- Help lists text/image-to-video full HD render; newer documentation adds QHD/UHD but blank rates; not universal price
- Checked at
- 2026-10-21
- Tax status
- Not normalized; consult linked provider terms/region before quoting a checkout total.
Commercial use #
- Summary
- FLUX.2 klein 4B is listed under Apache 2.0; klein 9B and dev variants have non-commercial weight licenses. FLUX 3 Image Klein product deployment requires commercial licensing. API terms are separate and do not grant dev self-hosting rights; they restrict API resale. Check model-specific weights license and jurisdictional terms.
Privacy #
- Summary
- Public policy collects prompts, uploaded references and outputs; permits model training/improvement with safeguards and email opt-out. Enterprise-contract processing is governed separately. API terms also license input/output use for improvement and training. No blanket no-training or fixed deletion claim.
Contradictions #
- Summary
- Help positions FLUX.2 as newest image generation while current docs include FLUX 3 Image and Klein. Prefer model-specific current docs; retain FLUX.2 as supported prior generation.
- Summary
- Video help describes HD/FHD; current model/docs include QHD/UHD. Price ranges from help must not be presented as exhaustive current video prices.
Unknowns #
FLUX 3 Image exact public price not extractable from opened table.Source review: 2026-10-21
Current FLUX 3 video duration/codec/variant pricing requires endpoint-specific verification.Source review: 2026-10-21
FLUX 3 Action and Max discovered in navigation but not catalogued in detail.Source review: 2026-10-21
Exact FLUX 3 Klein weight-license text was not reviewed.Source review: 2026-10-21
Sources #
- Welcome to the forest ↗
Reviewed 2026-10-21 · Evidence status: official page read · Older help catalog; not sole authority for newest versions
- Model costs ↗
Reviewed 2026-10-21 · Evidence status: official page read · Help rates, subject to newer documentation/calculator
- Pricing overview ↗
Reviewed 2026-10-21 · Evidence status: official page read · Several dynamically rendered price cells empty
- FLUX 3 Text to Image ↗
Reviewed 2026-10-21 · Evidence status: official page read · Provider-owned source.
- FLUX 3 Image Klein ↗
Reviewed 2026-10-21 · Evidence status: official page read · Provider-owned source.
- FLUX 3 Video ↗
Reviewed 2026-10-21 · Evidence status: official page read · Provider-owned source.
- Privacy Policy ↗
Reviewed 2026-10-21 · Evidence status: official page read · Revised August 1, 2026
- FLUX API Service Terms ↗
Reviewed 2026-10-21 · Evidence status: official page read · Non-EU terms; revised August 4, 2026