FLUX
FLUX · Freiburg, Germany · founded 2024
What it is
FLUX is a family of AI models for generating and editing images and video. FLUX 3 generates video with synchronized audio from text or images, can continue an existing clip, and supports clips up to 20 seconds. FLUX.2 creates and edits images up to 4 MP, with multi-reference editing, hex color control, and text rendering. FLUX Tools add endpoints for outpainting, object erasing, virtual try-on, video upscaling, and deblurring. Access options include a browser playground, an API, and downloadable open weights for deployment on customer infrastructure. FLUX has a free plan, alongside usage-based options such as FLUX.2 [klein] 4B at $0.01, paid once; extra megapixels and reference images can incur additional charges. API use includes full commercial rights without a separate license, while open-weight commercial rights depend on the model license. Submitted prompts, uploads, tasks, and outputs may be used to train and improve models; an email opt-out route is provided. The maker also links to a Help Desk and offers dedicated support for high-throughput enterprise workloads.
For and against
For
- Generates video with synchronized audio
- Edits images up to 4 MP
- Offers a browser playground, API, and open weights
- API use includes full commercial rights
Against
- Submitted content may be used to improve models
- Open-weight commercial rights depend on model license
- Additional megapixels and reference images can add charges
The verdict
FLUX combines image and video generation with specialized editing tools and several access options. Review model licensing and the stated data-use policy when choosing how to use it.
Who it suits
FLUX may suit people working in image or video generation, editing, design, marketing, product visualization, creative production, entertainment, or e-commerce. Its API, browser playground, and self-hosted open-weight options offer different access paths.
Plans and prices
FLUX.2 [klein] 4B
additional MP $0.001 · reference image $0.001/MP · up to 4 MP output
Read 19 Oct 2026 · bfl.ai
FLUX.2 [klein] 9B
additional MP $0.002 · reference image $0.002/MP · up to 4 MP output
Read 19 Oct 2026 · bfl.ai
FLUX.2 [pro]
additional MP $0.015 · reference image $0.015/MP · up to 4 MP output
Read 19 Oct 2026 · bfl.ai
FLUX.2 [flex]
image editing $0.10/MP · no per-image minimum · maximum output 4 MP
Read 19 Oct 2026 · bfl.ai
FLUX.2 [max]
additional MP $0.03 · reference image $0.03/MP · up to 4 MP output
Read 19 Oct 2026 · bfl.ai
Open weights — FLUX.2 [dev]
Self-hosted · no hosted API endpoint
Read 30 Sep 2026 · help.bfl.ai
Open weights — FLUX.2 [klein] 4B
Self-hosted model weights
Read 30 Sep 2026 · help.bfl.ai
Pay as you go — FLUX.2 [klein] 4B
Up to 4 MP output · resolution rounded up to whole MP
Read 30 Sep 2026 · bfl.ai
Pay as you go — FLUX.2 [klein] 9B
Up to 4 MP output · resolution rounded up to whole MP
Read 30 Sep 2026 · bfl.ai
On the record
- Access
- The maker offers a browser playground, an API, and downloadable open weights for deployment on customer infrastructure.bfl.ai · read 30 Sep 2026
- API endpoints
- The public API exposes generation endpoints for FLUX.1, FLUX.2, FLUX 3 and specialized editing tools through POST requests.api.bfl.ai · read 19 Oct 2026
- API workflow
- FLUX tool requests use an asynchronous submit-and-poll pattern for returning generated results.help.bfl.ai · read 19 Oct 2026
- Benchmark result
- Artificial Analysis listed FLUX.2 [pro] at Elo 1003 with 10,569 evaluations in its text-to-image leaderboard.artificialanalysis.ai · read 19 Oct 2026
- Billing limits
- Failed or moderated generations do not consume credits.help.bfl.ai · read 30 Sep 2026
- Commercial API rights
- Black Forest Labs says API usage includes commercial rights without a separate model license.help.bfl.ai · read 19 Oct 2026
- Company
- Black Forest Labs says it works from labs in Freiburg and San Francisco; its registered address is in Freiburg im Breisgau, Germany.bfl.ai · read 30 Sep 2026
- Company LinkedIn facts
- LinkedIn lists Black Forest Labs as privately held, founded in 2024, headquartered in Freiburg, Germany, with 51–200 employees and a San Francisco location.linkedin.com · read 19 Oct 2026
- Developer documentation
- The tools documentation includes endpoint parameters and worked examples, with a separate FLUX Tools section in docs.bfl.ai.help.bfl.ai · read 19 Oct 2026
- Early funding
- TechCrunch reported that Black Forest Labs emerged from stealth in 2024 with $31 million in funding and was reportedly discussing a $100 million round.techcrunch.com · read 19 Oct 2026
- Editing benchmark
- Artificial Analysis listed FLUX.2 [pro] at Elo 1013 with 4,096 evaluations in its image-editing leaderboard.artificialanalysis.ai · read 19 Oct 2026
- Framework integrations
- FLUX.1 Kontext [dev] supports ComfyUI, Hugging Face Diffusers and TensorRT inference frameworks.bfl.ai · read 19 Oct 2026
- Funding
- A December 1, 2025 announcement reported a $300 million Series B at a $3.25 billion post-money valuation and more than $450 million total funding.globenewswire.com · read 19 Oct 2026
- Image editing
- FLUX.2 models support prompt-driven image editing, with editing prices listed separately from text-to-image prices.help.bfl.ai · read 19 Oct 2026
- Image generation
- FLUX.2 models generate images from text prompts and support megapixel-based output pricing.help.bfl.ai · read 19 Oct 2026
- Image generation and editing
- FLUX.2 generates and edits images up to 4 MP and supports multi-reference editing, hex color control, and text rendering.help.bfl.ai · read 30 Sep 2026
- Integrations
- FLUX.1 Kontext and FLUX1.1 are available through Microsoft Azure AI Foundry for enterprise deployment.bfl.ai · read 19 Oct 2026
- License split
- FLUX.2 [klein] 4B is Apache 2.0, while FLUX.2 [klein] 9B, FLUX.2 [dev], FLUX.1 Kontext [dev] and FLUX.1 [dev] use a non-commercial license requiring commercial licensing.help.bfl.ai · read 19 Oct 2026
