| ![FLUX.1 [dev] Grid](../assets/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 our [blog post](https://blackforestlabs.ai/announcing-black-forest-labs/). |
| |
| # Key Features |
| 1. Cutting-edge output quality, second only to our state-of-the-art model `FLUX.1 [pro]`. |
| 2. Competitive prompt following, matching the performance of closed source alternatives. |
| 3. Trained using guidance distillation, making `FLUX.1 [dev]` more efficient. |
| 4. Open weights to drive new scientific research, and empower artists to develop innovative workflows. |
| 5. Generated outputs can be used for personal, scientific, and commercial purposes, as described in the [flux-1-dev-non-commercial-license](./licence.md). |
| |
| # Usage |
| We provide a reference implementation of `FLUX.1 [dev]`, as well as sampling code, in a dedicated [github repository](https://github.com/black-forest-labs/flux). |
| Developers and creatives looking to build on top of `FLUX.1 [dev]` are encouraged to use this as a starting point. |
| |
| ## API Endpoints |
| The FLUX.1 models are also available via API from the following sources |
| 1. [bfl.ml](https://docs.bfl.ml/) (currently `FLUX.1 [pro]`) |
| 2. [replicate.com](https://replicate.com/collections/flux) |
| 3. [fal.ai](https://fal.ai/models/fal-ai/flux/dev) |
| |
| ## ComfyUI |
| `FLUX.1 [dev]` is also available in [Comfy UI](https://github.com/comfyanonymous/ComfyUI) for local inference with a node-based workflow. |
| |
| --- |
| # Limitations |
| - 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. |
| |
| # Out-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. |
| |
| # License |
| This model falls under the [`FLUX.1 [dev]` Non-Commercial License](https://huggingface.co/black-forest-labs/FLUX.1-dev/blob/main/LICENSE.md). |
| |
