black-forest-labs/FLUX.1-dev
Summary
Black Forest Labs releases FLUX.1-dev, a 12-billion parameter open-weights text-to-image transformer model, available on Hugging Face with API endpoints and local inference support.
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Cached at: 08/05/26, 01:38 PM
black-forest-labs/FLUX.1-dev · Hugging Face
Source: https://huggingface.co/black-forest-labs/FLUX.1-dev
![FLUX.1 [dev] Grid](https://huggingface.co/black-forest-labs/FLUX.1-dev/media/main/dev_grid.jpg)
FLUX\.1 \[dev\]is a 12 billion parameter rectified flow transformer capable of generating images from text descriptions. For more information, please read ourblog post.
https://huggingface.co/black-forest-labs/FLUX.1-dev#key-featuresKey Features
- Cutting-edge output quality, second only to our state-of-the-art model
FLUX\.1 \[pro\]. - Competitive prompt following, matching the performance of closed source alternatives .
- Trained using guidance distillation, making
FLUX\.1 \[dev\]more efficient. - Open weights to drive new scientific research, and empower artists to develop innovative workflows.
- Generated outputs can be used for personal, scientific, and commercial purposes as described in the
FLUX\.1 \[dev\]Non-Commercial License.
https://huggingface.co/black-forest-labs/FLUX.1-dev#usageUsage
We provide a reference implementation ofFLUX\.1 \[dev\], as well as sampling code, in a dedicatedgithub repository. Developers and creatives looking to build on top ofFLUX\.1 \[dev\]are encouraged to use this as a starting point.
https://huggingface.co/black-forest-labs/FLUX.1-dev#api-endpointsAPI Endpoints
The FLUX.1 models are also available via API from the following sources
- bfl.ml(currently
FLUX\.1 \[pro\]) - replicate.com
- fal.ai
- mystic.ai
https://huggingface.co/black-forest-labs/FLUX.1-dev#comfyuiComfyUI
FLUX\.1 \[dev\]is also available inComfy UIfor local inference with a node-based workflow.
https://huggingface.co/black-forest-labs/FLUX.1-dev#diffusersDiffusers
To useFLUX\.1 \[dev\]with the 🧨 diffusers python library, first install or upgrade diffusers
pip install -U diffusers
Then you can useFluxPipelineto run the model
import torch
from diffusers import FluxPipeline
pipe = FluxPipeline.from_pretrained("black-forest-labs/FLUX.1-dev", torch_dtype=torch.bfloat16)
pipe.enable_model_cpu_offload() #save some VRAM by offloading the model to CPU. Remove this if you have enough GPU power
prompt = "A cat holding a sign that says hello world"
image = pipe(
prompt,
height=1024,
width=1024,
guidance_scale=3.5,
num_inference_steps=50,
max_sequence_length=512,
generator=torch.Generator("cpu").manual_seed(0)
).images[0]
image.save("flux-dev.png")
To learn more check out thediffusersdocumentation
https://huggingface.co/black-forest-labs/FLUX.1-dev#limitationsLimitations
- This model is not intended or able to provide factual information.
- As a statistical model this checkpoint might amplify existing societal biases.
- The model may fail to generate output that matches the prompts.
- Prompt following is heavily influenced by the prompting-style.
https://huggingface.co/black-forest-labs/FLUX.1-dev#out-of-scope-useOut-of-Scope Use
The model and its derivatives may not be used
- In any way that violates any applicable national, federal, state, local or international law or regulation.
- For the purpose of exploiting, harming or attempting to exploit or harm minors in any way; including but not limited to the solicitation, creation, acquisition, or dissemination of child exploitative content.
- To generate or disseminate verifiably false information and/or content with the purpose of harming others.
- To generate or disseminate personal identifiable information that can be used to harm an individual.
- To harass, abuse, threaten, stalk, or bully individuals or groups of individuals.
- To create non-consensual nudity or illegal pornographic content.
- For fully automated decision making that adversely impacts an individual’s legal rights or otherwise creates or modifies a binding, enforceable obligation.
- Generating or facilitating large-scale disinformation campaigns.
https://huggingface.co/black-forest-labs/FLUX.1-dev#licenseLicense
This model falls under theFLUX\.1 \[dev\]Non-Commercial License.
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