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Black Forest Labs Intermediate

FLUX.1-dev

FLUX.1-dev is Black Forest Labs' 12B text-to-image checkpoint for higher-quality open-weight research and creative image generation, distributed under the FLUX.1 [dev] Non-Commercial License.

Text-to-image generationTextImage Freemium
In plain English

What is this model and why does it matter?

FLUX.1-dev is a 12B Black Forest Labs text-to-image model designed for higher-quality open-weight research and creative image generation.

Text-to-image generationCreative workflowsConcept artLocal image generationResearch
Model overview

FLUX.1-dev: features, use cases and important details

FLUX.1-dev is a 12B rectified-flow text-to-image model from Black Forest Labs.

Verified model facts

The official model repository identifies the checkpoint as black-forest-labs/FLUX.1-dev and distributes it under the FLUX.1 [dev] Non-Commercial License.

Best fit

It is best suited to higher-quality open-weight research and creative image generation.

Limitations

Image outputs can contain composition or detail errors, and users must follow the applicable license and acceptable-use requirements.

Get started

How to use this model

  1. Review the FLUX.1 [dev] Non-Commercial License.
  2. Download black-forest-labs/FLUX.1-dev.
  3. Load it with Diffusers or another supported runtime.
  4. Provide a descriptive text prompt.
  5. Review outputs and licensing before production use.
Copy and try

Example prompts

  • A cinematic photograph of a futuristic railway station at dusk.
  • A clean editorial illustration of a robotics laboratory.
  • A premium product shot on a minimal studio background.
Capabilities

What it can do

  • Text-to-image generation
  • 12B rectified-flow transformer
  • Prompt following
  • Local deployment
Best for

Practical use cases

  • Concept art
  • Design exploration
  • Marketing visuals
  • Research
  • Image prototyping
Pricing

What does it cost?

Downloadable model weights; no direct per-token pricing applies to this image checkpoint.

Simple summaryLocal cost depends on GPU infrastructure. Check the model license carefully before commercial or production use.

What stands out

  • High-quality FLUX.1 generation
  • Open weights for research
  • Strong prompt following

Things to consider

  • Non-commercial/non-production weight license
  • Large 12B checkpoint
Limitations

Important restrictions and trade-offs

  • Generated images can contain visual errors or unwanted artifacts
  • Image generation is not factual verification
  • License and acceptable-use requirements apply
SimplifyAITools verdict

Our editorial take

A high-quality research-oriented FLUX checkpoint, but the weight license must be reviewed carefully for commercial production.

References

Primary sources

  1. Open source 1 ↗
  2. Open source 2 ↗
  3. Open source 3 ↗